—We don’t permit____ in our school. Would you please put your cigarette out?
—Forgive me. I didn’t know.
| A．to smoking | B．to smoke | C．smoking | D．having smoked |
He got up late and hurried to his office, ____ the breakfast untouched.
| A．left | B．to leave | C．having left | D．leaving |
Some people maintain that watching violence on TV is one of the major causes of _____ behavior and crime in society.
| A．artificial | B．automatic | C．aggressive | D．allergic |
It is not possible to ______ with certainty what effect this event will bring about.
| A．prohibit | B．preserve | C．panic | D．predict |
This is not an economical way to get more water; ____, it is very expensive.
| A．on the contrary | B．on the other hand |
| C．on the whole | D．on earth |
_____ Barbara Jones offers to her fans is honesty and happiness.
| A．Which | B．What | C．That | D．Whom |