--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
In a room above the store, where a party _____ in half an hour, some workers are busily setting the table.
Speaking of all the songs he has written, I think this is probably his _______ one.
The medicine works more effectively _______ you drink some hot water after taking it.
-- Bob, you are absent-minded! --- Oh, I’m sorry I _______ attention to you, Miss Shute.
There was a teapot shaped like a duck, out of ____open mouth the tea was supposed to come.