A salesclerk is talking to a cu...

Câu hỏi: A salesclerk is talking to a customer in an Apple Store.

A. Do you look for something?

B.  Good morning. Can I help you?

C. Excure me. Do you want to buy it?

D. Can you help me buy something?

A. for learning

B.  learning

C. to learn

D. learned

A. refuses

B. refused

C. had refused

D. would refuse.