未知题型

The ancient Egyptians are supposed _________ rockets to the moon.
A) to send B) to be sending C) to have sent D) to have been sending

【参考答案】

C 这句话可以翻译为：古埃及人被认为___火箭到月球上。
第一这是主动，第二送火箭是过去的事，排除AB，D中的h......

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The ancient Egyptians are supposed _________ rockets to the moon.A) to send B) to be sending C) to have sent D) to have been sending