Many of the creatures in the movie “Avatar” are not real, but much of __________ happens is attractive.
--- What a beautiful day! --- Yes, it is _______ that I’d like to take a walk.
—How about going out for a picnic on Sunday morning? —Hmm, ____.The weather is quite warm these days.
The driver ____ have drunk a lot before the accident, but I'm not quite sure of that.
When ____ to compare the education system of China and Britain, the professor gave no answer.
Why not get some work experience first ______ go straight on to university?