单选题
His family was poor, He ______ drop out(退学) of school at the age of 14.
A、
[A] had to
B、
[B] must
C、
[C] have to
【正确答案】
A
【答案解析】
mast 与have to 虽然都有“一定,必须”的意思,但have to 往往更强调“不得不”的意味。根据上句的意思,并注意到时态的一致性,所以填had to。
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