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 |
Let me have a rest,________?
| A．do I | B．don’t I | C．shall I | D．may I |
Open a window,________?
| A．wouldn’t you | B．won’t you | C．would you | D．don’t you |
Don’t make so much noise,________?
| A．will you | B．won’t you | C．shall we | D．do you |
The child ought to be punished,________?
| A．shouldn’t he | B．oughtn’t the child | C．ought he | D．should he |
She must be at the railway station at 9 o’clock,________?
| A．mustn’t she | B．must she | C．ought she? | D．need she |