These achievements_______ without the contribution of Qian Xuesen, a key leader of the New China's nuclear, missile and so on．
#89859
A
would have been unthinkable
B
would not be unthinkable
C
would be unthinkable
D
would not have been unthinkable
推荐题目
— 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
You are late. If you ____ a few minutes earlier, you ____ him.
#86905
A
came; would meet
B
had come; would have met
C
come; will meet
D
had come; would met
The old worker insisted that he________ old, and________ back to the working post again.
#86847
A
wasn’t; were sent
B
be not; send
C
wasn’t; be sent
D
isn’t; sent