—Mom！Jack has broken a cup！
—Doesn’t matter. Accidents ________ happen.
| A．should | B．must |
| C．will | D．Shall |
He was found guilty. _____, he lost the job and was blamed for incompetence.
| A. In case |
B. As a consequence |
C. After all |
D. In a row |
Recently our class held a fierce ________ as to whether to raise the price of school meals or not.
| A. bargain |
B. debate |
C. quarrel |
D. contest |
---In recent years, _____ problem of global warming has been very serious.
---That’s right. People are facing ____ number of natural disasters now.
| A. the; a |
B. a; the |
C. a; a |
D. the; the |
_______the people have become masters of their country _______ science can really serve the people.
| A．It is only then; that | B．It was that; when |
| C．It is only when; that | D．It was when; then |
Her new book is about a murder mystery ________ on actual murders that took place in Florida several years ago.
| A．having been based | B．to be based | C．based | D．having based |