She smiled happily，________ a set of amazing white teeth to us.
| A．exposing | B．being exposed |
| C．exposed | D．to expose |
Liza ___ well not want to go on the trip --- she hates traveling.
| A．will | B．can | C．must | D．may |
The road conditions there turned out to be very good,was more than we could expect.
| A． | it | B． | what | C． | which | D． | that |
Modern equipment and no smoking are two of the things I like ____ working here.
| A．with | B．over | C．at | D．about |
If their marketing plans succeed, they ____ their sales by 20 percent.
| A．will increase | B．have been increasing | C．have increased | D．would be increasing |
Stand over thereyou'll be able to see the oil painting better.
| A． | but | B． | till | C． | and | D． | or |