16.-Governments at all levels have to take measures to improve the quality of basic education.-Exactly. _________, students' homework must be greatly reduced.
Can you lend me the book ______the other day?
I like this book _______has a photograph of the author.
People ________do exercise every day have a better chance of staying healthy than those ________don’t.
He is the person _______,I believe, has the ability to do this challenging job.
The country life he was used to ______greatly since 1992.