_____ he is busy, ______ he helps his parents with the housework on weekends.
| A．Although, but | B．Though, but |
| C．Although, / | D．But, / |
If you hard, you a good grade in the exam.
| A．study, have | B．will study, will have, |
| C．will study, have | D．study, will have |
—What do you think of the talk show?
— . I watch it every week.
| A．I love it | B．I mind it |
| C．I can’t stand it | D．I don’t like it |
Two percent of workers in this factory men. A large number of them women.
| A．is; are | B．are; are |
| C．are; is | D．is; is |
— What do you think of math?
— I find difficult to learn it.
| A．that | B．this | C．its | D．it |
We couldn't see the road clearly the heavy snow.
| A．because | B．because of |
| C．so | D．though |