In the future, there will not be enough food and drinking water. _____ the world a better place to live in, what can we do now?A.To makeB.MakeC.Making
What do you do ________ Monday ? A. in B. at C. on
He is as ________ as his father . A. tall B. taller C. shorter
There ________ a book on the floor . A. am B. is C. are
——Could you tell me? ——Glad to help.
——________ late for school again, Tom! ——Sorry, I promise I _________.