It’s time for supper now. Let’s it.
| A．stop having | B．stop to have |
| C．to stop to have | D．stopping to have |
一Excuse me, where can I exchange _______?
一There is a bank on the second floor.
| A．books | B．food | C．money | D．stamps |
Basketball is so popular a game in the world that ______ people play it for fun and exercise.
| A．million of | B．millions of | C．millions | D．two millions of |
Don't be afraid of asking for help ______it is needed.
| A．when | B．after | C．although | D．unless |
I want to know______do to improve my English.
| A．what I can | B．what can I | C．how I can | D．how can I |
It's important______the piano well.
| A．of him to play | B．for him to play |
| C．of him playing | D．for him playing |