________ I regret most is that I have promised to make friends with the dishonest girl.
| A．How | B．What |
| C．Where | D．That |
With a population of over seven million, London is ________ the largest cities of the world.
| A．between | B．among | C．from | D．of |
— I rang you up last night, but nobody answered.
— Oh, I usually ________ off my phone at about 9:00 p.m.
| A．switched | B．have switched |
| C．switch | D．had switched |
There are two rooms in the apartment, ________ serves as a kitchen.
| A．the smaller of them | B．the smallest of which |
| C．the smaller of which | D．smallest of which |
After a second thought, Bill ________ a better idea of how to solve the problem.
| A．put up with | B．came up with |
| C．kept up with | D．mixed up with |
The number of new energy vehicles in China’s cities ________ to reach 39,000 by the end of this month, according to Wan Gang, Chinese Minister of Science and Technology.
| A．are expected | B．is expecting |
| C．are expecting | D．is expected |