用适当的介词或副词填空 1.The teacher tried to find_____who it was that had broken the glass.
2.The company suffered a lot because_____his carelessness.
3.From his expression,I knew that he didn't agree_____what I said at all.
4.These days,the price of pork has been going_____.
5.The old man rushed out of the room_____saying a word.
6.Now that you are given such a good chance,you had better make good use_____it.
7.We must hold on____the old chair-it may be very valuable.
8.To protect the environment,we had better turn_____the lights when we are not using them.
9.The reason_____which he didn't attend the meeting was that he was caught in the traffic jam.
10.You mustn't enter the manager's office,for_____present he is having a talk with an important guest.