To be a good swimmer, I must have lessons.
How many teachers are there in your school?A.你们学校有多少学生?B.你们学校有多少老师了?
他很友好。A.He is lovely. B.He is friendly.
This is a picture _______my family.A.at B.on C.of
I_____a doctor.A.are B.am C.isxKb 1.Com
There _____three people in Tom’s family.A.are B.is C.am