(   ) 6.Jenny,you should practice as often as you can      the piano competition.

   A. fail   B.  to fail

   C.  win   D.  to win

(   ) 5.The girl was very sad and her mother had to spend      time making her happy.

   A. such much   B.  so many

   C.  so much   D.  such many

(   ) 4.I remember      the window when I left home. But it is open now.

   A. to close   B.  closing

   C.  cloth   D.  clothed

(   ) 3.She wants to learn more about American history. She is thirsty       such knowledge.

   A. at   B.  of

   C.  for   D.  with

(   ) 2. I'm looking forward to       the policeman who saved me several years ago.

   A. see   B.  saw

   C.  seeing   D.  seen

(   ) 1. Since two hours ago,they        there without saying a word.

   A. had been   B.  have gone

   C.  have been   D.  are

       be responsible for,first of all,believe in,ahead of，set out

1.She is a sales girl and she       the sales.

2.      ，let me introduce myself to all of you.

3.He soon got      the other runners in the race. As a result, he won the race.

4.Do you       China's traditional herbal medicine?

5.He      to break the record for the English Channel swim. We thought he could do it.

5.貝蒂，你必須對自己負責任，因為你已經(jīng)長大了。

Betty,you must                  yourself because you've             .

4.這些貧窮的孩子們?nèi)耘f對知識充滿了渴望。

The poor children are still                     knowledge.

3.作為年輕人，我們將動身踏上新的旅程。

As young adults,we'll               a new journey.