Mr.Hamilton presided ____________ the board meeting on behalf of the Chairman.

Some people wait for () to come knocking. Some people sought it out.

A.necessity

B.opportunity

C.reality

D.probability

If things are going badly, the optimist acts quickly, looking for () and forming a new plan of action.

A.result

B.solutions

C.response

D.settlement

Plants use the carbon, along with sunlight, for growth, and () oxygen into the atmosphere in a process known as photosynthesis.

A.relieve

B.relate

C.release

D.retain

We all gather facts and () conclusions, but we have very different styles of thinking.

A.pull

B.draw

C.take

D.receive