The Thai do not use（）.They use a spoon and fork.

Human's Hands Archaeological records--paintings, drawings, and carvings of humans engaged
Human's Hands
Archaeological records--paintings, drawings, and carvings of humans engaged in activities involving the use of hands--indicate that humans have been predominantly right - handed for more than 5,000 years. In ancient Egyptian artwork, for example, the fight-hand is depicted as the dominant one in about 90 per cent of the examples. Fracture or wear patterns on tools also indicate that a majority of ancient people were fight - handed.
Cro-Magnon cave paintings some 27,000 years old commonly show outlines of human hands made by placing one hand against the cave wall and applying paint with the other. Children today make similar out lines of their hands with crayons on paper. With few exceptions, left hands of Cro-Manganese are displayed on cave walls, indicating thai the paintings were usually done by right-handers.
Anthropological evidence pushes the record of handedness nearly human ancestors back to at least 1.4 million years ago. One important line of evidence comes from flaking patterns of stone cores used in tool making: implements flaked with a clockwise motion (indicating a right- handed toolmaker) can be distinguished frp, those flakea wan a counter- clockwise rotation (indicating a left -handed toolmaker).
Even scratches found on fossil human teeth offer clues. Ancient humans are thought to have cut meat into strips by holding it between their teeth and slicing it with stone knives, as do the present -day Inuit. Occasionally the knives slip and leave scratches on the users' teeth. Scratches made with a left - to - right stroke direction (by right-handers) are more common than scratches in the opposite direction (made by left-handers).
Still other evidence comes from cranial morphology: scientists think that physical differences between the right and left sides of the interior of the skull indicate subtle physical differences between the two sides of the brain. The variation between the hemispheres corresponds to which side of the body is used to perform. specific activities. Such studies, as well as studies of tool use, indicate that right - or left – sided dominance is not exclusive to modem Homo sapiens. Populations of Neanderthals, such as Homo erects and Ho mo habilis, seem to have been predominantly right -handed, as we are.
What is the main idea of the passage？
A．Human ancestors became predominantly right- handed when they began to use tools.
B．It is difficult to interpret the significance of anthropological evidence concerning tool use,
C．Human and their ancestors have been predominantly right -handed for over a million years.
D．Human ancestors were more skilled at using both hands than modem humans.

use的用法（）

----Do you mind if I use vouchers to spend in a restaurant?
----().

It suddenly______to me that we could use a computer to do the job.A．happenedB．occurredC．ag
It suddenly______to me that we could use a computer to do the job.
A．happened
B．occurred
C．agreed
D．presented

请帮忙给出正确答案和分析，谢谢！

Do you often surf on the Internet？（).A. Yes. I surf on the Internet.B. Yes. I use it a l
Do you often surf on the Internet？().
A. Yes. I surf on the Internet.
B. Yes. I use it a lot nowadays.
C. Yes. I seldom do so.

Do you think that most managers in real life use a contingency approach 1to increase their leadership effective？ Explain.

请帮忙给出正确答案和分析，谢谢！

We often use signs as well as words to tell people _________.A.what to doB.to do howC.h
We often use signs as well as words to tell people _________.
A.what to do
B.to do how
C.how to do
D.to do what

- Do you often surf on the Internet?
- ___________________

We live in a computer age. People ___21___ scientists, teachers, writers and even students use computers to do all kinds of work. But more than 30 years ago, computers couldn't do much. They were very big and expensive. Very ___22___ people were interested in them and knew how to use them. Today computers are smaller and ___23___. But they can do a lot of work, many people like to use them. Some people even have them at home.
Computers become very important because they can work faster than people and make fewer mistakes. Computers can ___24___ people do a lot of work. Writers now use computers to write. Teachers use them to help teaching. Students use them to study. Computers can also remember what you ___25___ them. Computers are very useful and helpful. They are our friends. Do you want to have a computer？
21)、
A.like
B.cheaper
C.few
D.put into
E.help
22)、
A.like
B.cheaper
C.few
D.put into
E.help
23)、
A.like
B.cheaper
C.few
D.put into
E.help
24)、
A.like
B.cheaper
C.few
D.put into
E.help
25)、
A.like
B.cheaper
C.few
D.put into
E.help