题目内容
15．-Must I go to law school and be a lawyer like you，Dad？-No，you _____，son．You're free to make your own decision．（ ）
| A． | can't | B． | mustn't | C． | shouldn't | D． | needn't |
分析 句意：--我一定要上法律院校成为像您一样的律师吗，爸爸？
--不，不需要，儿子，你可以自由的决定．
解答 答案：D．根据No和You're free to make your own decision．可知下面为否定回答，must的含义是必须一定，其否定形式mustn't表示禁止的含义．在这里不是禁止的意思．must的否定回答一般可借助于needn'和don't have to来构成．故选D．
点评 本题考查了情态动词的用法．注意must的用法以及它的肯否定形式．
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Several minutes later，his mother pointed to the same sparrow and asked the same question again．Mike got a little angry but（47）A answered her question．After a little while，his mother did the same thing once more．This time Mike could not（48）C his anger．He shouted at her for（49）D him again and again．
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