Our environment is in great danger. Maybe we should ____________ a way to protect it.

Have you got any idea for the summer vacation? —I don’t mind where we gothere is sun, sea and beach

Nowhere else in such a small town, I think, ___ a book as good as this one.

The worker _______ in the factory has been fired. [ ]

（题文）Peter’s jacket looked just the same as Jack’s，but it cost________his.