In the past few years, so many areas throughout the world have been hit by such destructive earthquakes, snowstorms and tsunamis ______ we have never experienced before, ______ makes us worried a lot about nature disasters.

A. A. that; that      B. as; which         C. which; it        D. when; as

Children need to feel ______ in order to do well at school.

The elderly ______ good care of in public places like supermarkets and airports; they are likely to get lost.

The USA and some other countries helped the rebels in Libya ______ their promise to support democracy and fair trade.

Could you please recommend a garage ______ I can have my car ______.

Would you please keep silent? The weather report ______ and I want to listen to it.

-- You’d better turn to your elder sister.

-- ______. We haven’t talked to each other for quite a long time. I don’t think she’ll be willing to help me.

The ladies would appreciate ______ if you could do them the favor to solve the two problems.

______ we ______ to these immediate crises abroad, we also will not let up in our effort to deal with the pressing, ongoing challenges facing our country.

-- How do you like the movie?

-- ______, it’s not exciting enough, though lots of money has been spent on it.