—Why are you late,Jim?—Because there________a lot of traffic when I came here.
---How long does it take us to go to Mount Qingcheng?---It takes us hour or more to go to Mount Qingcheng by subwayA.an;a B.a;an C.an;/
—— do you spell computer?—— C-O-M-P-U-T-E-R.A. What B. How C. What color
——Are these buses?—— .A. Yes, they’re.B. Yes, they are.C. Yes, they aren’t.
This is my room. room is tidy.A. parent’s; TheirB. parent’s ; OurC. parents’; Their
——This is my ruler. the blue pens?——They are Helen’s.A. What B. How C. What about