He hopes ______ a swimmer in the future, so he is busy practicing ______ after school.
| A．to be, swimming | B．will be, swim |
| C．can be, to swim | D．be, swimming |
Dear students, please read every sentence carefully. ______you are, ______mistakes you’ll make.
| A．The more carefully, the fewer |
| B．The more careful, the less |
| C．The more carefully, the less |
| D．The more careful, the fewer |
All the students are talking and laughing in the classroom and it’s ______.
| A．noisy | B．lonely |
| C．quiet | D．strict |
Mary takes a lot of exercise every day and she is always full of_______.
| A．knowledge | B．energy |
| C．change | D．damage |
The bus driver always says to us: “Don’t get off ______ the bus stops.”
| A．when | B．while |
| C．until | D．if |
________ of the city was covered with the heavy smog.
| A．Two-third | B．Two-thirds |
| C．Two-three | D．Two-threes |