As is known to us, happiness consists ____ appreciating ____ you have.
| A．of; what | B．in; what | C．of; that | D．in; that |
We don’t allow _______in the office．But you are allowed _____ in the rest room．
| A．smoking; smoking | B．to smoke; to smoke |
| C．smoking; to smoke | D．to smoke; smoking |
Peter was so excited ______ he received an invitation from his friend to visit Chongqing．
| A．where | B．that | C．why | D．when |
Nine in ten parents said there were significant differences in their approach to educating their children compared with ______ of their parents．
A．those B one C．both D．that
The fact that people are afraid to go out at night is often a result of perceived (感知) danger ________actual danger.
| A．other than | B．more than | C．rather than | D．better than |
Mother told Jim to watch the milk until it boiled and then _________ off the gas.
| A．turn | B．turning | C．turned | D．having turned |