---Could you please come to the museum with me this afternoon?
---Sorry, I ______ . I have to take a piano lesson at 2 pm.
| A．couldn’t | B．mustn’t |
| C．can’t | D．needn’t |
It’s selfish ________ him ________ the cakes with others.
| A．for; to share | B．for; not shar |
| C．of; to not share | D．of; not to share |
This is _______ song I have introduced you many times. Isn’t it _______wonderful one?
| A．a; the | B．the; the |
| C．a; a | D．the; a |
--- Come on, everyone! We must be the first to complete the poster for the charity show.
---Sure.____________.
| A．East or west, home is the best |
| B．The early bird catches the worm |
| C．Many hands make light work |
| D．Don’t put all your eggs in one basket |
great fun it is to go surfing in weather!
| A．What; such fine | B．What a; so a fine |
| C．How; such fine | D．How; so fine a |
It’s quite clever ________ you _______ out the problem.
| A．for; working | B．for; to work |
| C．of; working | D．of; to work |