问题描述：
for at如何选择?
( ) 3 They were invited to an important ball ____ the first time ____ their lives.
A. for; in B. at; in C. on; for D. in; with
( ) 4 Tom always comes late____school.
该怎么选择,为什么?
问的是第3题
第4题可以不用看
( ) 3 They were invited to an important ball ____ the first time ____ their lives.
A. for; in B. at; in C. on; for D. in; with
( ) 4 Tom always comes late____school.
该怎么选择,为什么?
问的是第3题
第4题可以不用看
问题解答：
我来补答展开全文阅读