题目内容
You must do something to prevent your house ________.
[ ]
A.to be broken in
B.from being broken in
C.to break in
D.from breaking in
答案:B
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1.—May l come in?
—________ .
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A. No, you mustn't |
B. No, you mayn't |
|
C. Yes, you must |
D. Yes, you might |