. If only I ________ how to operate an electronic computer as you do.
#89384
A
had known
B
would know
C
should know
D
knew
推荐题目
--Can I tell my best friend about it? ---No. I don’t want anyone else to know. You _________ let it out.
#88317
A
mustn’t
B
won’t
C
don’t have to
D
don’t need to
Robert wishes that he ________ business instead of history when he was in university.
#89390
A
studies
B
studied
C
has studied
D
had studied
— You ought to have called her yesterday . — Yes , I know I ____ .
#89767
A
ought to
B
ought go have
C
ought have done
D
ought to have called
It is suggested that a doctor ____immediately.
#86426
A
be sent for
B
send for
C
is sent for
D
should send for
.________ the warning message, more lives would have been lost in the flood.
#88315
A
Regardless of
B
In spite of
C
But for
D
Except for