---Does he go to work ________ plane?---No, by taxi!A. on B. by
There______ three boys in the classroom.A. is B.are C. have
_______ everyone happy?A. Am B.Is C. Are
Who _____ tired?A.am B. is C. are
We have English _____ 2:00______ the afternoon.A.at,at B. in,in C. at,in
May I ______ you take a picture?A. to help B. help C. helping