—Miss Li, are we going to have a picnic tomorrow?—Yes. But if it ______, we’ll do some reading instead.

—I phoned you at 5:00 yesterday afternoon, but nobody answered me.—Sorry. I          the flowers in the garden at that time.

It is hard to imagine what life __________ in 100 years.

—________did your uncle leave his hometown?—He ________ for nearly twenty years.

_____ you have _____ homework to do every day?