He arrived____ London ____ a cold winter night.
| A．at; at | B．in; on | C． in; in | D．\; on |
It’s easy to _____ this math problem.
A. work out B. find out C. look out
Japan is ________ the east of China.
A. in B. on C. to
The traffic sign “
” means “__________”.
A. go B. stop C. danger
—Would you like to go with me?
—I’d like to, _________ you don’t want to go alone.
A. until B.ifC.after
—Would you help me plan a trip?
—_________________
A. You bet! B. Yes, I can. C. Not at all.