---I will drive to the station to buy a ticket to Beijing for next Sunday.

---______? Actually you can order a ticket online.

A．Why bother       B．What for          C．So what           D．Why not

He was born on ______ winter morning in 2010, when ______most severe storm struck the city and caused hundreds of deaths.

A．a; the            B．the; the           C．a; a              D．the; a

It remains doubtful ______ immediate measures could be taken to prevent underground water pollution.

A．how             B．whether          C．that              D．where

A strong earthquake struck Lushan county, a district of Yaan, ______ more than 100 people and ______ hundreds of others, local authorities said.

A．killing; injured                          B．killed; injuring

C．killing; injuring                          D．kill; injure

I ______ the TV series The Legend of Zhenhuan when my mom made a phone call to me.

A．am watching       B．watching          C．was watching       D．was watched

China now aims to boost domestic demand, and this ______ would help the global economy.

A．in short           B．on duty           C．on average        D．in turn

The research report published last month is very important______ it confirms the link between aggression and alcohol.

A．as long as         B．in case            C．in that            D．even though

Don’t be afraid of difficulties. They can help you______ experience, and experience can, in return, broaden your horizons.

A．accompany        B．accumulate        C．abandon          D．acknowledge

It’s a pity that you ______ leave so soon. Your uncle will be home in 10 minutes and he misses you so much.

A．should            B．could             C．can              D．might

______around the university, we then were taken to a building, ______ many scientists worked.

A．Showing; where                        B．Having been shown; where

C．Having shown; which                     D．Being shown; that