China ________ the Great Wall in the world.
---Have you ever fed them?---__________. But I have cooked for them.Yes, I have. B. No, I haven’t. C. No, I didn’t.
------ He is late for the meeting.------ ______.A. So am I B. So I am C. So I do
------ What a nice motorbike! How long have you ______ it?------ About half a year.A. had B. receive C. bought
There are several chemical factories ______ waste water into the river.A. pours B. pour C. pouring
Jim has been to the Great Wall before, ______ he?A. has B. does C. hasn’t