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
Last night the order came that all those infected with the deadly disease ________.
#87974
A
was separated
B
should separate
C
be separated
D
were separated
Without your help, I ____the exam last term. 
#89943
A
failed in
B
would have failed
C
wouldn’t pass
D
would fail