【題目】－Did you do well in the math examination yesterday?

－I'm afraid not. Some problems were not as easy as they________.

A. supposed

B．supposed to be

C．were supposed to be

D．were supposed to

【答案】C

【解析】be supposed to do意為“應(yīng)當(dāng)；理應(yīng)”，承前省略的不定式后有be時(shí)，不定式符號(hào)to后要保留be，故選C項(xiàng)。

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