1 . ________(stress)to everyone the importance and value of these historic sites, the government will strengthen regulations to protect them. (所给词的适当形式填空)

2 . ________ (facilitate) a positive change in our bad habits, we must first examine our bad habit cycles and then try to adapt them. (所给词的适当形式填空)

3 . ________(decrease)the amount of rubbish and to protect the environment, more governments are requiring people to recycle materials. (所给词的适当形式填空)

4 . To achieve our goal, we need to think out of the box________________(explore) every possibility. (所给词的适当形式填空）

5 . He often uses that________________look ________________them. ( frighten) (所给词的适当形式填空）

6 . (2016·全国新课标卷III·语法填空) Skilled workers also combine various hardwoods and metal          (create) special designs.