He has no idea what the book is about．He have read it very carefully．
#87733
A
needn’t
B
shouldn’t
C
can’t
D
mustn’t
推荐题目
Jack,you’re so lazy!This job hours ago.
#89651
A
should finish
B
must have finished
C
ought to have been finished
D
was about to finish
The teacher commanded that the naughty boy _____, but he refused.
#87384
A
stand up
B
stood up
C
would stand up
D
had stood up
How I wish I ________ in medicine instead of history when I was at college!
#87107
A
had majored
B
should major
C
majored
D
would major
He ______ the test again, in which case, his mother will be very disappointed.
#89549
A
might fail
B
must have failed
C
should fail
D
could have failed
I ______ through that bitter period without your generous help.
#87337
A
couldn’t have gone
B
didn’t go
C
wouldn’t go
D
hadn’t gone