--I saw Betty go to Grandpa Li's home just now. --Yes. She’s often seen _________ the old man with the housework.. A: help B. to help C. helps D. helped
—Why are you unhappy today? —The watch,which I ________the other day,is out of order again.
Sarah looked at ______finished painting with ________satisfaction.
Special attention should be paid ________our earth from________.
Most students at school hope that they can ________activities that appeal to them after class instead of just doing their homework.
It is said that the café being built near the post office ________mainly to the workers from the factory across the road.