Wash your hands before you _______ my books.

A、operate

B、handle

C、employ

D、pour

请帮忙给出正确答案和分析，谢谢！

A、rink milk every day

B、wash my hands

C、go to bed early

A、wash hands before eating

B、go to the dentist

C、go to bed early

A、preparing, prepare.

B、preparing, prepare for

C、preparing for, prepare

D、preparing for, prepare for

A、Touch your hands

B、Touch your head

C、Touch your mouth

A、Put your hands in the bag

B、Put your hands under the desk

A、Raise your hands

B、Open your book

C、It's all right

A、Minimize outdoor activities

B、Washing hands often

C、isinfect masks with alcohol

D、Wear a face mask when going out

E、over your mouth with your hand when coughing

A、seal

B、sealing

C、sealed

D、seals

A、Clap your hands.Swing your arms.Stomp your feet

B、Stomp your feet.Swing your arms.Clap your hands

C、lap your hands. Stomp your feet.Swing your arms

A、Tom's hands are hurt（疼痛）

B、Your dog is fat, but Tom's is thin

C、Tom's is a big car

D、Tom's a big car