---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 |
I’ll spend as much time as I can ____ after the flowers in the garden.
| A．look | B．to look | C．looking | D．looked |
–This boy is very clever.
--_____.
| A．So is he | B．So he is |
| C．He is so | D．He so is |
— Mary is ill. When shall we go to see her, tonight or tomorrow night?
— ________. Either night is OK.
| A．I’m sure | B．I’m afraid not |
| C．I don’t know | D．I don’t mind |
We are all at the news.
| A．surprising; surprising | B．surprising; surprised |
| C．surprised; surprising | D．surprised; surprised |
She dinner when there was a loud knock at the door.
| A．has | B．was having | C．had | D．is having |