问题
You _____ lose your way if you walk alone in the mountains at night.
A:may
B:need
C:should
D:ought to
B:need
C:should
D:ought to
正确答案是：
同类题型
I have been to London. I ____________ there last month.
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The earthquake killed _______ .people .
Shall we meet __the office at eight tomorrow morning? —All right. [ ]
I returned home with some roses and only then __________ find my favorite vase missing.