新概念英语第二册练习册21课答案

练习册！！！

第1个回答 2013-06-10

A：2 must be written 3 it won't be opened 4 mustn't/must not be used 5 it would be done 6 has to be explained 7 can't/cannnot be found 8 must have been done 9 might have been repaired 10 can't/cannot be done
B: can be repaired,will be repaired by saturday,could be done
C: 1.understand 2.realize 3.offered 4.house 5.home 6.determined 7.drove 8.driving
D: 1 An American cat.
2 Next to a plane at Chicago Airport.
3 The cat was sucked into the plane.
4 It went to zurich,Liberia and then back to Zurich.
5 He said they could hear noise.
6 It has been taken home by an employee at Zurich Airport and has been named "jumbo"
希望能帮到你

第2个回答 2014-01-13

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