题目内容
下列句子均有一处错误(或多一词;或缺一词;或错一词),请找出并加以改正。The rockets have been used to sending satellites into space and to prepare for the nation’s first manned space flight.
答案:
解析:
提示:
解析:
| sending→send,be used to do sth被用来做某事
|
提示:
练习册系列答案
相关题目