He loves travelling. He often tells us many of his interesting ________ in Africa.

A. transport B. pollution C. lawn D. experiences

The poor man lived in a small house, and he often feels _______.

A. along B. alone C. lonely D. long

Don't try to do everything at once. Take it a bit ________.

A. at times B. at a time C. at all times D. at that time

—Could you join us this afternoon?

—Sorry, I can’t. I ________ take care of my little sister because my mother is out.

A. May B. have to C. must D. need

—What's your uncle?

—He ________ a policeman, but now he is a businessman.

A. was used to being B. was used to be

C. used to be D. used to being

I know the city very well, for I ________ here since 1999.

A. will live B. am living C. was living D. have lived

It is difficult for us to learn a lesson in life ________ we've really had that lesson.

A. until B. after C. since D. when

—Why is Sally so excited?

—She ________ her lost iPhone.

A. is looking for B. is finding C. has found D. found

—Have you done your homework?

—Yes, I ________ it an hour ago.

A. do B. will do C. did D. has done

—________ is it from here to Nanjing Museum?

—About 20 minutes by bike.

A. How long B. How often C. How far D. How soon