He claims to be an expert in astronomy but in actual fact he is quite ignorant on the sub

Young ______ he is, he has proved to be an able salesman.A．thatB．whoC．asD．which

Dont be_____by products claiming to help you lose weight in a week.A．taken upB．taken inC．t

To help others, you dont have to be an efficient expert in the art; the main thing is the

The old man claimed to be able to divine what the starshold ____ for us.A) in storeB

Why not ______ to Professor Chen for advice？ He is an expert in this field.A、goB、to go

______an international student to work without proper papers, he would be in violation of