题目内容
（请给出正确答案）
[单选题]
You look so tired. You ______ all night.
A. must have been working
B. might be working
C. must work
D. should have worked
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A. must have been working
B. might be working
C. must work
D. should have worked
如果结果不匹配，请 联系老师 获取答案
更多“ You look so tired. You ______…”相关的问题
A.keep
B.have
C.take
D.make
A、make up
B、make good use of
C、take care of
D、look up to
A、look for
B、look into
C、look after
D、look up
_ of her smile. When you're not looking at her, she seems to be smiling; when you look at her, she stops.
A、barrier
B、misfortune
C、prospect
D、mystery
A.at least
B.at best
C.at most
D.at worst
A.unique
B.confident
C.incredible
D.fascinating
A.a credit card
B.money
C.a cheque
D.cash
A.guess what
B.so what
C.now what
D.What for
A.Its very kind of you to say so
B.Im not worthy of the praise
C.Thank you
D.I do not deserve the praise
