. —Did you get there by ______ bike?
—No, I took ______ taxi.
| A．a; a | B．不填; a | C．the; the | D．a; the |
Mary couldn’t go to the cinema with us because she had to _____ her little brother.
| A．look for | B．look after | C．look at | D．look into |
Everybody likes to keep_______.
A health B. healthily C. in health D. healthy
When did Jenny finish ______ the letter yesterday?
| A．to write | B．wrote | C．writes | D．writing |
I can’t go there with you; I have ______ to do.
| A．anything important |
| B．something important |
| C．important something |
| D．important nothing |
______do you go swimming ? Sometimes.
| A．How often | B．How long | C．how many | D．How old |