17、―How did you lose all those files (文件)?

―The electricity went off _______ I was working on my computer.

A．as though                 B．now that              C．in case                D．while

16、Would you please make a sentence to _______ the meaning of the phrase?

A．turn out                    B．bring out             C．make out                D．figure out

14、_______ is known to us all is that there have been five cases of A(H1NI) influenza on the mainland, two of whom have been cured.

A．It                            B．As                       C．That                       D．What

13、_______ around the Western Hill, we were then taken to visit the BeiHu Park.

A．Having shown          B．Showing             C．Having been shown               D．To show

12、―Shall we go and lend them a hand with their work?

―___________. We might be just in the way.

A．It’s my pleasure         B．We’d better not    C．With pleasure            D．Sounds great

10、It was in Sichuan, _______ is a lovely province in Southwest China, _______ those pandas were brought up.

A．where, that             B．which, that        C．which, where           D．where, which

9、With the financial crisis worsening, more and more people _______ their jobs.

A．lost                          B．had lost               C．are losing                D．lose

8、―Will all these new actions taken by President Barack Obama lead to ______ stronger and powerful America, _______ country that can surprise the world?

A．the, the                   B．a ,the                  C．a, a                        D．the, a