October 24, 1860, the Qing government and the Britain sighed "the treaty ofBeijing", ___ put an end to the second Opium war．
| A．which | B．that | C．when | D．in which |
The government of the country is trying to _____ the prices for foods in order to please people.
| A．bring down | B．take down | C．put down | D．lay down |
Is _____ possible to fly to the moon in a spaceship?
| A．now | B．man | C．it | D．that |
You can’t _____ until tomorrow morning after the blood examination.
| A．not only eat but also drink | B．either eat or drink |
| C．neither eat nor drink | D．both eat and drink |
We’re trying our best to get our English _____.
| A．improved | B．to improve |
| C．improves | D．improving |
Though some foreign scientists had a ______ opinion of his new invention, his fellow workers never thought ____ of it.
| A．highly; low | B．low; high |
| C．high; highly | D．poor; highly |