游客
题文

Some time after the rockets and the space shuttle are _____, the rocket will _____ the space shuttle and ____ the sea.

A.set sail; broadcast; drop in B.ruled out; orbit; show up
C.stepped up; survive; fall for D.launched; separate from; fall into
科目 英语   题型 单选题   难度 较易
知识点: 动词的辨析
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