Scientists say they have found a way to produce the human body’s own cancer-killing cells through gene treatment, ______ new hope to cancer sufferers

Not only my friend but also I ______ interested in action films. We often see films together.

Excuse me, is this _________ new camera —Yes, it’s ________.

The old couple have been married for 40 years and never once ________ with each other.

When you finish reading the book, you will have ________ understanding of life.