【題目】He is honest and warm-hearted. __________ is why we trust him.

A. It

B. That

C. This

D. These

【答案】B

【解析】句意：他既誠實(shí)又熱心。那就是我們信任他的原因。that指代上文提到的情況或說過／做過的事情。

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