The exhibition tells us we should do something to stop air pollution.

We were delayed at the airportOtherwise，we here by lunch

This box all the books you need, an English-English dictionary.[ ]

Below the mountains, the sunshine reflects on the many lakes,____makes them shine likediamonds against the rich countryside.

If you still remember the ______ time of the accident, please tell us. We would ______ your help.