______ leaves the room last ought to make sure that the windows are closed and the door locked.
| A．Whoever | B．Who | C．Who will | D．Those who |
No one ________ be more generous; he has a heart of gold.
| A．could |
| B．must |
| C．dare |
| D．need |
They were determined to carry out the plan at first, but then we ________ persuade them to change their minds.
| A．would |
| B．could |
| C．were able to |
| D．had to |
—Could I use your pen?
—Yes, of course you ________.
| A．might |
| B．will |
| C．can |
| D．should |
When winter comes, _________ spring be far behind?
| A．must |
| B．should |
| C．will |
| D．can |
It is surprising that that mean man ________ give away his money to the poor.
| A．should |
| B．would |
| C．can |
| D．must |