___ is known to all, China will be an _____ and powerful country in 20 or 30 years’time.

-----Hurry up, or you won’t be in time for the meeting!-----Oh, my dear. My watch is five minutes _______.

Overpopulation is a terrible threat to the human race.Yet it is probably ____ a threat to the human race than environmental destruction.

I am _____ about what I say because careless remarks are likely to hurt others' feelings．

It is because of its geographical position that typhoon is    in Taiwan during summer.