—Do you know _____?
—Sorry, I don’t know.
| A．what’s the population of Japan |
| B．what the population of France is |
| C．how much of the population of Japan is |
| D．how many is the population of France |
-Your mother _______ take a bus to work?
-Yes. But now she usually goes to work on foot.
| A．use to | B．used to |
| C．was used to | D．is used to |
-When _______ your mother _______ you that blue dress, Mary?
-Sorry, I really can't remember.
| A．does; buy | B．has; bought |
| C．had; bought | D．did; buy |
You can't watch TV _______ you finish your homework.
| A．before | B．if |
| C．while | D．as |
They were _______ busy _______ with each other to remember the time.
| A．enough; talking | B．enough; to talk |
| C．too; talking | D．too; to talk |
Miss Taylor never wastes money on anything too expensive, even though (尽管)
she can _______ to. She has donated much of the money she saved to charities.
| A．afford | B．spend |
| C．pay | D．cause |