The real solution to the fuel shortage will have to be a new kind of car, _____ that does not use so much oil．

A．the one        B．what         C．/         D．one

A survey of the opinions of experts _____that three hours of outdoor exercise a week ______ good for one’s health．

A．show；are          B．shows；is         C．show；is          D．shows；are

It was in 2005_____ he finished his study abroad and returned to his motherland．

A．when        B．since         C．that           D．before

--How’s your tour around the North Lake? Is it beautiful?

--It ________ be, but it is now heavily polluted．

A．will           B．would               C．should         D．must

To test which foods are better for a long space journey, the astronauts in Shenzhou VI had as many as 50 dishes________．

A．to choose          B．to be chosen          C．to choose from      D．to be chosen from

In the past three years, the Southeast Asian nation also witnessed its islands ____ by tsunami and typhoons．

A．being destroyed          B．destroying         C．destroyed          D．to be destroyed

So difficult _____ it to adjust to an English-speaking environment that he determined to learn English hard．

A．he has felt        B．has he felt         C．he did feel          D．did he feel

_____ better in 2010 World Expo is the duty of every citizen in Shanghai．

A．Being served         B．Serving            C．Serve         D．Having served

Look out ! Don' t get too close to the house __________ roof is under repair．

A．whose            B．which             C．of which          D．that