Since nobody gave him any help, he __________ have done the research on his own.
| A．can | B．must |
| C．would | D．need |
The government declared that it would __________ an end to some unfair policies the next month.
| A．make | B．bring. |
| C．take | D．come |
_________ last term we had finished our experiments.
| A．At the end of | B．By the end of |
| C．In the end of | D．At an end |
It's surprising that your brother __________ Russian so quickly-he hasn't lived there very long.
A. picked upB. looked up
C put on D.made up
“It’s such a nice place.” Mother said as she sat at the table __________ for customers.
| A．to be reserved | B．having reserved |
| C．reserving | D．reserved |
-Why does the water smell terrible?
-Because large quantities of water __________.
| A．is being polluted | B．have been polluted |
| C．is polluted | D．has been polluted |