—I’m busy with my schoolwork these days.
—That’s great! You won’t get good grades ______ you work hard.
| A．if | B．because |
| C．unless | D．after |
I have a sister ________ Wangfang.
| A．name | B．call | C．named | D．calls |
Jenny plays _______ piano, and I play _______ basketball every day.
| A．/; / | B．the; the | C．/; the | D．the; / |
John was born _______ June 6, 1985.
| A．at | B．for | C．in | D．on |
Could you please_____ the window?
A. to open B. open C. opening
Are you good at ______?
A. swim B. swimming C. to swim