_____ teaching in a university, he also spent some time teaching in a night school.
The teacher always reminds us, “On no condition_____ you are a Chinese.”
_______ of being involved in the attempted murder, she was questioned by the police.
-How long ________inBeijing? -For just the weekend. I'II be back for work next Monday.
Chinese medicine can sometimes provide a cure______western medicine can't produce any good result
-Would you take this along to the office for me? -__________.