问题

I’m exhausted I _____ on a project day and night– You’d better have several days off after finishingit Otherwise you might break down

A:need
B:must
C:can
D:should

正确答案是：

同类题型

This book isn’t mine. ________can it be?

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honest, the world owes a lot to Nelson Mandela for his _______ support of racial equality and human rights.

There is much chance _____ Bill will recover from his injury in time for the race. [ ]