If you don’t turn up by 8 o’clock, we’ll go ______ you.
At the meeting they discussed three different_______to the study of mathematics。
He was chosen _________ of the company.
In the botanic garden we can find a(n)______of plants that range from tall trees to small flowers.
The experiment turned out to be ________, which wasn’t ______ they wanted.
She is in a poorof health, which worries her mother much.