I think the most helpful invention is light bulb. It seeing in the dark, and it gives people more time to work and play every day.A. used to B. is used to C. is used for
We would like to _______ some money _______ the poor children in our country.
--It’s dark. _______ I _______ the light, Mr Wu? --Yes, please.
We don’t have ______ bread at home. Could you give me _______, please?
Do you need him _______ all the things?
How glad we are! Miss Li will teach _______ English this term.