____ one-hour documentary takes ____ close lookat the life of giant pandas in Wolong.

I have to take the driving test tomorrow.Therefore, today I’m going to practice againand again

___ is the first time that he _________invited to Japan after so heavy disaster

Excuse me, where is the post office–Go across the bridge, it’s on your left.

al evidence began to ______,suggesting that the new drugs had a wider range of useful activities than had been predicted from experiments in animals.