摘要：5．The professor paused as if his students to ask questions on the point he had just made. A．expecting B．having expected C．expected D．to have expected 解析:选A.当as if从句的主语和主句的主语一致.且从句又包含充当谓语的be时.从句的主语和be就常常省略.
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The professor paused as if________his students to ask questions on the point he had just made.
A．expecting B．having expected
C．expected D．to have expected
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