32.I had a bad cold,and ________ is why I didn't come.A.that B.this 为什么不选this

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32.I had a bad cold,and ________ is why I didn't come.A.that B.this 为什么不选this

this不能用作关系代词呢 从来没听说过从句中有用this的

I had a bad cold是过去式,而说话的时候是现在。 I had a bad cold已经过去,不在当前,所用that.

A
固定句话
that's why...这就是。。的原因
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