My best friend is a good listener.He is always there________carefully.

On our journey to Australia last summer, our luggage was ________ at the customs. We were not allowed to carry food such as meat and vegetables.

The money collected should be made good use _________the people in Sichuan Province who suffered a lot in the earthquake

Don’t look down upon Bob. He has his own advantages. —-Oh, yes. ______ others are weak, he is strong.

Little Tom seemed to have much on his mind, what’s up?— He was caught ________ in the final exam this afternoon. [ ]