问题

Dad, must I practice the piano today—No, you _. You may do it tomorrow.

A:needn’t
B:mustn’t
C:shouldn’t
D:can’t;

正确答案是：

同类题型

last year , my sister tried to lose weight (减肥), but ______ putting weight back on.

Hello! Who’s speaking — Hi, Ann. _________ Mary.

On Dec.19, 2014, Chinese President Xi Jinping attended welcome meeting to celebrate 15th year of Macao’s return to our motherland.

The Bunsen Burner is so named because it is thought ___________ by Robert Bunsen

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