It’s very kind __________ you to help old people.
I often go to school ________. A. by bus B. by a bus C. by the bus
—How's it going?—. A. It's great b. You are welcome c. Thanks a lot
—Another cup of tea? —No,thanks. I_______ be off. Gina is waiting for me. A. can b. must c. may
—How many people will________ to your birthday party? —Twelve. A. invite b. be invited c. be inviting
The rain is very heavy________ we have to stay at home. A. but B. becauseC. so