The Yellow River flood large areas, but now the waters of it are used to energy.
| A．was used to; producing | B．used to; producing |
| C．was used to; produce | D．used to; produce |
We played badminton ______ Sunday afternoon.
| A．on | B．in | C．at | D．For |
–Have you ever ________ an amusement park?
--Yes, I have．I ________ Fun Times Amusement Park last year.
| A．been to, have gone to |
| B．gone to, have been to |
| C．go to, went to |
| D．been to, went to |
–Have you finished your homework yet?
--Yes, I ________ it twenty minutes ago.
| A．have finished | B．will finish |
| C．finished | D．had finished |
What a nice day! You should go sightseeing ___________ watching TV at home.
| A．because of | B．instead of |
| C．together with | D．out of |
You’ll ___________ swim when summer comes.
| A．be able to | B．can |
| C．could | D．are able to |