22、According to a new study by a British’s university , learning ______ second language can lead to ________ increase in your brain power.  

A) a ; the         B) 不填；the     C）a ；an       D）the ；an

21、With the help of the firefighters ,the workers managed to escape from burning mine , ____  ___.

A )hungry and frightened          B)hungrily and frightening

C )hungry and frightening         D) hungrily and frightened

20、Many people in this country eat _______________ as they actually need every day.

A) twice as much meat           B) twice meat as much

C) as twice much meat            D) meat as much twice

19、__________ the mother sacrificed everything for her daughter.

A) So great was her love that          B) Such great love she was

C) So great her love that                     D) Such great was her love that

18、__ Any suggestions?

__ You’d better ______________ the last sentence as it is rather misleading.

A) put out      B) leave out      C) point out       D) pick out

17、__ It is so late. Our son __________ be back.

__ Don’t worry. I dare say he ________ have some extra work to do.

A) can; must    B) will ; might     C) should ; must      D) must ; may

16、When first __________to the market, these products enjoyed great success .

A) introducing    B) introduced    C) to introduce   D) being introduced

15、Great changes have taken place in that factory. It is no longer ______ it was 20 years ago,_____ it was so poorly equipped.

A) what ,when    B)that ,which    C) what ,which    D) which ,that

14、He advised farmers to choose the best seed-heads ,__________ that had the best color .

A)不填          B) ones        C) this         D) the ones

13、Mary would rather______ inside______ while I would rather she_______ to go shopping with her friends.

A) stay; reading; went           B ) stay; reading; goes 

C) stayed; to read; goes          D) stayed; reading; would