--- Will you waste your time and money on that?
--- Certainly ________.
| A．I not | B．don’t | C．not | D．no |
Our bodies are strengthened by taking exercise. ________，our minds are developed by learning.
| A．Probably | B．Likely | C．Similarly | D．Generally |
Smoking is one of the ________causes of cancer，killing millions of people each year.
| A．major | B．similar | C．commercial | D．chemical |
In a sports team each player has a clear role，and there are few occasions ________members are confused or uncertain about their roles.
| A．whose | B．that | C．when | D．which |
—I’m green at everything.
—Don’t worry. ________you get older，you will get more experience.
| A．As | B．Till | C．Unless | D．Since |
As a film star she was a success，but as a wife she was ________failure，so their marriage ended in ________failure.
| A．不填；不填 | B．不填；a | C．a；a | D．a；不填 |