a, __________ the alarm clock for 6 o’clock, oryou will oversleep and be late for the train.

___ the problem of land erosiongetting more serious, the government is searching for a way to deal with it.

You may find out more information about Australiannatives through the Internet _______.

May we leave the classroom now— No, you _______. You _______ to leave until the bellrings.

Mom, shall we have supper now—Oh, we won’t have supper ______ your dad comes back.