---We can’t expect _____blue sky unless we create ___

---We can’t expect _____blue sky unless we create ____less polluted world.

#8991

a; a

a; the

the; a

the; the

推荐题目

Students should be encouraged to use _________ Internet as _________ resource.

#7933

不填；a

不填; the

the; the

the; a

You can try to guess the meaning of ______ words you don’t know from ______ passage．

#9687

the; 不填

the; the

不填;不填

不填; the

________ 2010 Shanghai World Expo was ________ honor for all of the Asians.

#7818

The; the

不填； an

The; an

不填； the

This morning I picked up        wallet in        surprise on my way to school.

#9542

A;a

the;a

a;\

\;the

The film 2012 has filled some people with ________ fear that ________ man will meet terminal disasters in 2012.

#9261

a；/

a；the

/；the

the；/