“How about John?”“My uncle ______a good student．”

Where’s Li Hua—Look! He ____ tennis on the playground.

Shall we have a smoke here?— No, we _______ because the workers are carrying some gas.[ ]

I regret _____ you that Mary was badly injured in theaccident.—I can hardly believe my eyes. She is always socareful.

s go skating, shall we–That’s not a good idea; the ice is toothin _____ your weight.