—I have got a headache.—No wonder.You___in front of that computer too long.
Yuan Longping is such a(n) ______ scientist that he has been praised and rewarded many times.
In a way,________ global warming is a challenge for man,so we must overcome it to build ________ fine world.
I think_____ impresses me about his painting is the colors he uses.
I don’t really like the author _____ I have to admit his books are very exciting.
---When shall I call, in the morning or afternoon?----_____. I’ll be in all day.