China is one of the countries ________ the Mekong River flows.
| A．in which | B．by which |
| C．across which | D．through which |
The manager was rushing to the airport so he______the report the secretary had typed.
| A．got through | B．glanced through | C．saw through | D．carried through |
We expected 50 people to take part, but the_____number was a lot higher.
| A．average | B．correct | C．usual | D．actual |
Although her ability in art has not yet developed, she has great____ as an artist.
| A．success | B．potential | C．victory | D．possibility |
- She got into a(n) _____when she thought she'd forgotten doing homework.
| A．trap | B．delight | C．panic | D．argument |
---How much will I pay for a night?
---Prices_____from room to room.
| A．vary | B．arrange | C．divide | D．range |