Our teacher is always busy preparing lessons until 11 o’clock at night, _____we students have gone to sleep.
How this kind of plant can be ____ in a special way is still unknown to us.
It is in this very village , ___Mary was born 35 years ago , ___ she will build her first school , inspires everyone to help her .
—Can I help you ?—I want _________these nice roses for Lucy’s birthday .
---Peter was killed in a car accident! --- I talked with him yesterday morning. A What a pity! B.I beg your pardon. C. Sorry to hear that. D. Is that so?
---You were tired out after the mountain climbing, weren't you? ---Yes, ______. I could hardly rise to my feet.