Most air pollution is caused by the burning oflike coal, gas and oil.
| A． | fuels | B． | articles | C． | goods | D． | products |
It’s been discovered in the study ______ people are more relieved after forgiving others.
| A．that | B．what | C．which | D．whose |
____ regular exercise is very important, it’s never a good idea to exercise too close to bedtime.
| A．It | B．As | C．Although | D．Unless |
______ Stephon Marbury is an American, he has become a role model among Beijing basketball fans.
| A．As | B．Although | C．When | D．Since |
— You look great!
— I ______ out. Check out my muscles!
| A．will work |
| B．was working |
| C．have been working |
| D．had been working |
— I can’t bear the air pollution in this city anymore．It is getting worse and worse．
— ________！We’ve never had so many chemical factories before．
| A．I wouldn’t bet on it |
| B．You said it |
| C．Keep it up |
| D．Come off it |