_______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
| A．Being examined | B．Examined |
| C．Examining | D．Having been examined |
Amy joined a painting group but didn’t seem to _____, so she left.
| A．show off | B．go up | C．fit in | D．come over |
Sorry, LiMing, I’m afraid I have to ______. Someone is calling me.
| A．ring over | B．ring off | C．ring out | D．ring up |
Jack went back home after a heated discussion, _______.
| A．annoyed and tired | B．annoying and tired |
| C．annoyed and tiring | D．annoying and tiring |
Mary can speak Chinese fluently, _____ impressed me most.
| A．why | B．that | C．where | D．which |
Generally speaking, according to the directions, _____ the drug has no side effect.
| A．when taken | B．when taking | C．when to take | D．when to be taken |