Had it not been for the haze（霾）weather phenomenon, there fewer car accidents in Beijing then．
| A．would have been | B．were |
| C．may be | D．would be |
Mrs. Smith finds it hard to clear up the mess, as her children are alwayswhenever she tries to.
| A． | in the way | B． | on watch | C． | in sight | D． | on the line |
Old-fashioned phones matter when wireless networksin disasters.
| A． | turn down | B． | turn out | C． | break down | D． | break out |
The book tells stories of the earthquake through the eyes of those ____ lives were affected.
| A．whose | B．that | C．who | D．which |
The girl has a great interest in sport andbadminton classes twice a week over the last three years.
| A． | took | B． | is taking | C． | takes | D． | has been taking |
The Forbidden City attracts a _____ stream of visitors every day, especially during national holidays.
| A．constant | B．main | C．powerful | D．shallow |