We shouldn’t________he trees in order to protect the environment．

The book deserves ____ a second time. —Sorry, I can’t follow you clearly. —I said the book is worth ____ again.

His failing in the exam ________ us because he was al­ways an outstanding student.

In the middle of the square ______ two stones with a picture of a hero at each top.

What did you do last weekend— I _____ to the countryside with my family.