汇总的很全面,免费 共享

［答案］D.

［析］这里的真正主语应为不定式to walk on the moon.而形式主语只能用it.

38 Jane has sent several letters, but ＿＿＿of them have been answered.

A all B both C either D none ［答案］D.

［析］several letters意为“若干信件”，应看作多于两者，则在A、D中作选择，仅D符合句意。 39 I don't know ＿＿＿about the new headmaster. A something B everything C nothing D anything

［答案］D.

［析］否定句中应用anything.

40＿＿＿ of the students in the whole class could do this physics question.

A No B None C Not D Neither ［答案］B.

17