future, care for the environmentwill become very important as earth’s natural resources _____

It’s my treat today. Is there any particular meal youwould like to have-you choose is all right withme.

The fact that she never apologized _____ a lot about what kind of person she is. [ ]

Who is that woman over there —___________ is my English teacher.

_______ have fought with the policeman.—Yes. If one ________ ask for trouble, it can’t be helped.