Only in this way ____to make an improvement in the operating system.
#79589
A
you can hope
B
you did hope
C
can you hope
D
did you hope
推荐题目
On the small island，which is at the entrance to New York Harbor, ．
#79615
A
the Statue of Liberty stands
B
stands the Statlle of Liberty
C
does the Statue of Liberty stand
D
does stand the Statue of Liberty
Only then _________the importance of my health.
#82987
A
did I realize
B
had I realized
C
I realized
D
I had realized
Not only _______interested in Beijing Opera but ______beginning to show an interest in it.
#80336
A
the father himself is; all his children are
B
the father himself is; are all his children
C
is the father himself; are all his children
D
is the father himself; all his children are
Never______ such a difficult problem. It took me almost half an hour to work it out.
#80170
A
had I come across
B
I had come across
C
did I come across
D
I did come across
--- You can’t have enjoyed your picnic in the rain last Saturday, I’m afraid.--- On the contrary, we ______.
#80557
A
can
B
must
C
did
D
have