It is high time that we started to consider what ________ we should take to reduce heavy smog caused by traffic fumes and other pollutions.
| A．affection | B．attention |
| C．measures | D．advantages |
Catherine is one of the brightest students who from the Department of Computer Science , Brown University .
| A．is graduated | B．has graduated | C．are graduated | D．have graduated |
The belief that the children of working mothers usually suffer isby most scientists.
| A．rejected | B．refused | C．resisted | D．reduced |
Something about his manner suggested that he not interested in what we were doing .
| A．was | B．were | C．be | D．is |
the teacher’s suggestion, Tom finally found a way to settle the problem .
| A．Following | B．To follow | C．Follow | D．He followed |
Class is to begin in a minute , but the teacher still hasn’t .
| A．come on | B．turned out | C．come along | D．turned up |