课时作业(二十九) Unit 4 Global warming
Ⅰ.用所给词的适当形式填空
1.The city is looking into ways to reduce air________(pollute)．
2.We've seen an enormous________(grow) in the number of businesses using the Web.
3.He made many great________(contribute) to the success of the project.
4.What he is dreaming of is to walk into the________(out) space freely with the equipment made by himself.
5.Having lived in Paris for 35 years，he experienced many social and cultural________ (phenomenon) of France.
6.There is a growing________(tend) for people to work at home instead of in the office.
