Nobody can learn English well __________he works hard on it.
| A．if | B．unless |
| C．when | D．but |
It’s too hot. We should ____ the windows ____.
| A．take, open | B．keep, opening |
| C．keep, open | D．keep, opened |
Don’t get off the bus ____ it stops.
| A．then | B．so | C．because | D．until |
____is “Lucky 52” shown on CCTV-2? Every week.
| A．How long | B．How often |
| C．How many times | D．How soon |
---__________? ---I can’t find my bike.
| A．How are you | B．Who are you |
| C．What is wrong with you | D．Whose bike is this |
---What’s your sister like? --- __________.
| A．She is well | B．She is thin |
| C．She likes red | D．That’s right |