6.B doesn’t like

7.B to answer

8.B will be

9.B isn’t

10.D on

四.1.C 2.B 3.C 4.B

五.1.policeman 2.E-dog 3.frog

六.

1.more helpful than

2.Did enjoy themselves

3.keeping secret between

4.the same as

5.less time by coach

6.isn’t on is it

练习三

一.1.quietly 2.fit 3.popular 4.finishes 5.twelfth 6.word 7.twice 8.lost 9.medals 10.save

二.1.C 2.C 3.D 4.A 5.B 6.B 7.C 8.B 9.B 10.B

三.

1.the same as mine

2.different from

3.Be careful with hurt

4.Make sure closed

5.hurt stay in hospital

6.lost their lives

7.should in danger

8.is getting smaller smaller

四.1.herself 2.theirs 3.me 4.themselves 5.them 6.yourself 7.us 8.Its 9.Our 10.his

五.best fit exercise learn alone took beautiful dangerous choose makes

六.1.D 2.B 3.A 4.D 5.D