We won’t start the meeting our teacher arrives.
| A．while | B．until | C．when | D．or |
My brother is ______ than me.
A. outgoing B. more outgoing C. the most outgoing
—Where did you go _____ vacation?—I went to Hong Kong.
A. for B. in C. on
—_______does he go shopping? — Twice a week.
A. How often B. How C. How long
There will be _____ jobs for people in the future, because more robots will do the same jobs as people.
A. many B. less C. fewer
Why not ______ the old women? They need us.
| A．help | B．helping | C．to help | D．helped |