1. a)break b) broke c)broken 2.a)break b)broke c) broken
3.a) was b) have c) were
4.a) Did b) Was c) Were
5. a) couldn't b) shouldn't c) haven't
6.a) will go b) am going to go c) go
7. a) will b) should c) could
8.a) should b) could c) must
9.a) mustn't b) couldn't c) won't
10.a) most dangerous b) more dangerous c) dangerous
11. a) less dangerous b) the least dangerous c) dangerous
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