Special attention should be _____ to air pollution wherever the factory will be built.

It is very kind _______ you to help me withmy housework It is hard _____me to do allthe work

Jack told the librarian that the book _______as soon as he finished reading it.

Which boy do you want to see now ——-The _______ in the redhat.

Have you ever been to Shanghai ______— Yes. I went there two weeks ______. It is a modern city.