Has he ever been heard __about his trip to the lonely island?
| A．of talking | B．talk | C．to talk | D．to say |
------ 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
The city has improved a lot _________ I came here a few years ago.
A. sinceB. forC. when
The weather in summer here is cooler than ______ in Beijing.
A. this B. that C. it