13. A new technique_________, the yields as a whole increased by 20 percent.

A.working out

B.having worked out

C.having been worked out

D.to have been worked out

I can hardly imagine so pretty girl like you ________ boxing.

　　A. like  B. to like  C. liking  D. to have liked

　　 The time he has devoted in the past years _______ the disable is now considered ________ of great value.

　　A. to help; being      B. to helping; to be

　　C. to help; to be      D. helping; being

The students were all ___after they heard the ____story.

A.     inspired; inspiring   B. inspired; inspired

C.  inspiring; inspired   D. inspiring; inspiring

Shanghai is so full of_______, it seems as if things never stop.

A. strength                   B. spirit                        C. force                        D. energy

—— Who on earth could it be?    —— It was ________ other than Peter.

A. none    B. nothing       C. not           D. nobody

The open university was started in order to help those who _____ having a university education when they were young.

   A. stopped    B. failed    C. missed    D. ceased

Be careful how you _____ that jug, it will break very easily.

   A. pour    B. operate    C. handle    D. employ

You will get to the church more quickly if you take this _____ across the fields.

         A. track         B. passage     C. method     D. journey

The government's strong action demonstrated its _____ to crush the rebellion.

   A. energy    B. resistance    C. courage    D. determination