—Has Billy finished his homework today?
—I have no idea.He it this morning.
| A．would do | B．was doing | C．has done | D．had done |
We have kept in __________ touch with each other for two years and he always gives me good advice on __________ phone.
| A．the; the |
| B．/；the |
| C．/；/ |
| D．the; / |
We can't __________ to wait any longer or we'll miss the plane.
| A．offer |
| B．avoid |
| C．afford |
| D．spare |
-If you do like the new house, why not buy it?
-But it's really expensive. I can't __________ it.
| A．get |
| B．supply |
| C．afford |
| D．support |
__________ we gave him something to eat, he would save it up for his little sister.
| A．Whatever |
| B．However |
| C．Whichever |
| D．Whenever |
Tim is in good shape physically __________ he doesn't get much exercise.
| A．if |
| B．even though |
| C．unless |
| D．as long as |