题目内容

Li Lei ________ getting ready for tomorrow's travel.

[  ]

A.can be busy
B.must be busily
C.must be busy
D.can be busily
答案:C
提示:

表示推测时can用在否定句或疑问句中,而must用在肯定句中。句型be busy doing sth.


练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网