Don’t turn off the computer before closing all programs     you could have problems
#86872
A
or
B
and
C
but
D
so
推荐题目
You didn’t let me drive. If we ______ in turn, you ______ so tired.
#87358
A
drove…didn’t get
B
had driven…wouldn’t have got
C
drove…wouldn’t get
D
were driving…wouldn’t get
----She didn’t take the medicine last night, did she?­   -----              .
#87123
A
No, but I wish she wouldn’t
B
No, but I wish she had
C
Yes, but I wish she did
D
Yes, but I wish she would
You must be a writer, _____?
#90135
A
mustn’t you
B
are you
C
must you
D
aren’t you
-Why didn’t Susan come to see us yesterday as she promised?-______. 
#87312
A
She must be busy
B
She might have been free
C
She must have been busy
D
She can’t be free