5. In our class, when the bell rang and the taacher closed his book, it was a        or everyone to stand up.

The boy slipped out of the room and headed for the swimming pool without his parents' _____.

The school advisers help you talk through your problem but they don’t give you any direct .

China has got a good               for fighting against the flu with its careful and smooth organization.

There is a 20 minute parking _____ here, so we must get back to the car very quickly.