Please don’t make so much noise.I a novel.
| A．writes | B．am writing | C．wrote | D．was writing |
A heavy learning burden leads to unhealthy behaviors such as poor eating habits, which ___ damage the health of students.
| A．in its turn | B．in return | C．in turn | D．by turns |
How did you ___ to paint the whole house in a week?
| A．try | B．manage | C．win | D．succeed |
Black clouds had completely ___ the sun.
| A．blocked off | B．broken out | C．blocked out | D．broken off |
It was an unpleasant subject ____ we _____ for a long time.
| A．about which…discussed | B．about which…argued |
| C．over them…argued | D．which…argued |
It must have rained last night, ________ the ground is wet now.
| A．for | B．because | C．since | D．now that |