With so much noise outside, the students can’t _____ their homework.
| A．concentrate on | B．depend on | C．keep on | D．put their hands on |
Before going for an interview, it is important to ________ as much information as possible about the company.
| A．take out | B．bring away | C．look up | D．turn down |
It was with great joy _______ he worked out the problem that he had long been puzzled about.
| A．which | B．that | C．because | D．since |
The manager is always very _______ for appointments, which earns him a good reputation.
| A．punctual | B．numb | C．allergic | D．content |
_______ this sentence a second time, the meaning will become clear to you.
| A．If reading | B．When you read | C．Reading | D．Read |
Global warming is a big _______ for all and it’s important to raise awareness about climate change.
| A．reward | B．concern | C．evolution | D．boom |