Without the contributions of Qian Xuesen, the father of Chinese missile, the achievements in space technology unthinkable in China．
| A．would be | B．would have been |
| C．might be | D．should have been |
__________both sides accept the agreement will a lasting peace be established in this region.
| A．If only | B．Only if | C．unless | D．As long as |
The time he has devoted in the past years _______ the disabled is now considered ________ of great value.
| A．to help; being | B．to helping; to be | C．to help; to be | D．to helping; being |
As ________ rule, apples are sold by ______ weight and eggs by _______dozen.
| A．a; 不填；the | B．a; the; the | C．a; a; the | D．the; 不填；不填 |
Britain ____ many other industrialized countries, ____ major changes over the last 100 years.
| A．together with; have experienced | B．as well as; have experienced |
| C．in common with; has experienced | D．instead of; has experienced |
- Don’t you think hard work is what makes people succeed?
-- ________________
| A．I couldn’t agree more | B．I hope so |
| C．I’ve got it | D．Wish you success |