Yon’d better _____ your diet rather than eat the same things all the time.[ ]

Kathy doesn’t know how to _________each other. She has few friends. [来源：

Tom, why did you make no reply when I called your name in the street just now—Sorry, Jim. I to my wife on the phone.

All the employees at the company are _______ their business as usual.

You don’t like rock music, do you —_________. I think it is too noisy.