---How often do I need to feed the birds?
---They______ food every day, or they will be hungry.
| A．must give | B．mustn’t give |
| C．must be given | D．mustn’t be given |
—Today is my birthday . Can you come to my party tonight?
— .
| A．Don’t worry | B．Sure, I’d love to |
| C．That’s too bad | D．No, I don’t know |
Please check your paper to ________ there are no mistakes.
| A．think of | B．try out | C．find out | D．make sure |
Dale is studying in________university and he wants to be________engineer.
| A．a，a | B．a，an | C．an，a | D．an，an |
—____does the journey take?
—One week.
| A．How often | B．How soon |
| C．How much | D．How long |
–Can you come to play basketball with us,Tom?
-______.
| A．I can come | B．That’s all right |
| C．Sure, I’d love to | D．That’s OK |