The small mountain village where you took part in the summer camp last year lies in ______ is now part of Shanxi.

A. where             B. that             C. what             D. Which

____ matters most in learning English is enough practice.

A. What             B. Why               C. Where                D. Which

_____ puzzles me most is that I don’t know ______ the difference between the two lies.

A. What, how        B. What, where        C. That, what        D. How, which

Some researchers believe that there is no doubt ______ a cure for AIDS will be found.

  A. which              B. that              C. what             D. whether 

— Are you still thinking about yesterday’s game?

— Oh, that’s ____________. 

A. what makes me feel excited        B. whatever I feel excited about

C. how I feel about it                D. when I feel excited

We worried about ______ he was in good health.

      A. whether         B. if                C. that              D. what

Look at the clock! It's time ______ work.

     A) we started      B) we'll start           C) we're starting     D) we have started

. --- Believe it or not, I passed the driving test at the first attempt yesterday.

--- Great! But remember you can never be ___ careful when driving a car in the street.

         A. enough         B. rather  C. quite    D. too

The _____ of the trees in the water was very clear.

 A. mirror           B. sight          C. reflection          D. shadow

Everyone stood up______ the hero came into the lecture hall.

A. while        B. instant            C. every time   D.immediately