选用正确的连词填空。
that,if/whether,who,whom,whose,which,what,when,where, how,why
1.Please tell me_____ you arrived in New York.
2.I'd like to know_____ of the two hats is nicer.
3.He asked me _____ I could answer the question in English.
4.They hope to know _____ they can get tickets.
5.I want to know _____ they are going to stay here.
6.He was never satisfied with or proud of _____ he had achieved.
7.The book gives an excellent picture of _____ America was discovered.
8.He made it quite clear to us_____ he is not coming.
9._____ saved his life is still unknown.
10.That is_____ pollution has become a serious problem in many parts of the world.
11.It happened _____ there was no wind yesterday.
12._____ the future will be like is uncertain to everyone.
13._____ the prisoner had escaped was not made known.
14._____ he didn't come to class is still a puzzle.
15.It looks _____ we shall have to walk home.
参考答案：
1.when/whether 2.which 3.whether/if 4.where 5.how long/whether/why 6.what 7.how 8.that 9.Who 10.how/why 11.that 12.What 13.How 14.Why 15.as if
