> 英语 >
She had difficulty _____ up with the rest of the class.
A.keeping
B.to keep
C.keep
D.kept
人气:176 ℃ 时间:2019-10-23 10:52:56
解答
B.to keep
have sth to do
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版