Was it because of the heavy snowstorm in Europe the flight had to be put off? A.

Was it because of the heavy snowstorm in Europe ________the flight had to be put off？

   A.which         B.so          C.why        D. that

试题答案

【答案】

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【解析】考察强调句型。It is/was被强调成分that/who其他成分；这是强调句型的基本结构。本题强调的是介词短语because of the heavy snowstorm in Europe。故D正确。