－How many VIP will attend tomorrow’s conference?

－________．Maybe around 40．

A．I don’t know

B．I’m not sure

C．It is a puzzle

D．It doesn’t matter

I'm sure that Laura’s latest play, ________, will prove a great success．

A．if staging

B．if it stages

C．once staged

D．once it stages

Many people in Europe in the Middle Ages thought that Galileo was wrong, but he was right ________．

A．in all

B．all in all

C．after all

D．first of all

－Now that you like the garden so much, why not buy it?

－Well, I can’t afford ________ garden．

A．such big a

B．that big a

C．a big that

D．so a big

Excuse me, ________ can you show me how to get to the airport?

A．so

B．and

C．yet

D．but

If he had taken my advice, he ________ in the competition．

A．would succeed

B．would have succeeded

C．should succeed

D．might succeed

Peter used some of the money his mother bad given to buy books, and ________ remained in his pocket．

A．the rest

B．others

C．the other

D．another

The house could fall down soon if no one ________ some quick repair work．

A．has done

B．is doing

C．does

D．had done

You must remember that in order to be successful, you must first explore your talents and get m know yourself so as to find out ________ your real interest lies．

A．what

B．where

C．that

D．which

China is now the third country to conduct spacewalk, the other two ________ that are the former Soviet Union and the US．

A．to achieve

B．having achieved

C．to have achieved

D．achieving