题目内容
例:A computer can only do you have instructed it to do.
A.how
B.after
C.what
D.when
答案是C.
-Can I pay the bill by check?
-Sorry, sir.But it is the management rules of our hotel that payment ________ be made in cash.
[ ]
A.shall
B.need
C.will
D.can
答案:A
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