专升本APP
升本考编制，就到金标尺!
友情链接：
A
can have gone
B
ought to have gone
C
must have gone
D
should have gone
正确答案 ：C
解析
【翻译】电脑运行不畅，所以一定是某个地方出问题了。 ［考点］情态动词 【精析】C can have done:本可以；ought to have done:本来应该；must have done:一定是，想必是；should have done:本应该做某事。根据句意可知，本句表示肯定的推测，所以应选C。
