用方框中所给短语的正确形式完成下列句子

用方框中所给短语的正确形式完成下列句子
regard...assense of humour on one's way to...let...downjoin in
learn...by heartfind out lead...to be in trouble in reply to
1.He ____________ the applause when the performance came to an end.
2.The English teacher told us to ________ the next __________ after calss.
3.Could you please ___________ the guests ___________ the meeting room?
4.Study hard,or you will _________ your parents.
5.When he saw the policeman coming towards him,he knew he _________.
6.The letter I received was _________ the application I sent them.
7.Edward has a great __________.He often makes us laugh.
8.Did the police ________ who stole the money from the bank?
9.The students all ________ their new English teacher _________ their friend.
10.___________ the library,I met an old friend of mine.