Sindy, ________ to be here at 8 o’clock A is sure B is sure

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Sindy, ________ to be here at 8 o’clock A is sure B is sure that C will be sure D be sure
________ when you cross the road.
A Do care B Care C Do be careful D To be careful
这两题选什么?解释一下道理.急.谢谢

A.sb. be sure to do“某人肯定会……”
C.Be careful when you cross the road.句首加个Do表强调,强调be.“你过马路时务必小心”
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再问：第一题为什么不选 D 第二题为什么不选D to be careful 是小心啊
再答： 1.若选D的话，那这就是出现在情景对话里。A对Sindy说“你必须8点钟到这”，题干只给了这么一句话，那就理解为一陈述句。 2.你选D是怎么想的

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