Our playground is not so tidy and beautiful as before. Students must _____ dirty things on it.A. be stopped to throwB. be stopped from throwingC. stop to throw
--Your English is so good. Can you tell us ________? --At home-school. My father taught me.
Her composition is better than .
Father has had the computer _________. Now it works very well.
we were walking along the river, we heard a cry for help.
Thank you for offering me _____.