1.2 课时作业
Ⅰ.用didn't need to do或者needn't have done改写句子
1．Thank you for telling me the news, but I have already known it.
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答案：You needn't have told me the news, because I have already known it.
2．There's no need for Jim to buy the dictionary.
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答案：Jim needn't have bought the dictionary.
3．My mother washed my clothes yesterday, so I didn't do it by myself.
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答案：I didn't need to wash my clothes yesterday, because my mother did it for me.
4．I was given a ticket for last night's film, so I didn't buy one.
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答案：I didn't need to buy a ticket for last night's film because I was given one.
5．It wasn't necessary for her to pay so much.
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答案：She needn't have paid so much.
Ⅱ.用所给动词的didn't need to do或者needn't have done形式填空
