— Linda, can you give me some tips on doing this project? — Sorry, but I’m not the person to ______ how the job should be done. 

(2014·福建名校质量检查)I hope the government will take more strict________against the smog that affected several big cities last winter.

If he works hard at his lesson, I guess he can _______the final exams.

While our city tries impatiently to change its appearance by tearing down old buildings, more and more citizens are suggesting ways to ___________ the historically important architecture

— The teacher said we had only three days to finish the work. — Don't worry. We have already ________ two thirds of it.