the students came from different countries, they got along quite well in the summer camp.
| A．While | B．Unless | C．Since | D．Until |
He didn’t attend the meeting last night, _________ he doesn’t know our plan for the picnic.
| A．that’s why | B．that’s because | C．which is why | D．which is because |
In 1778, Banks was elected ________president of the Royal Society, ________position he held for 42 years.
| A．/, a | B．/ , the | C．the, a | D．the, the |
---You really appreciate Justin Bieber’s performances, don’t you?
--- __________. I just like his soft voice.
| A．Not exactly | B．Don’t mention it | C．Not a little | D．Don’t say so |
--- How ________ feel to be mistaken for someone else?
--- Really embarrassing.
| A．do you | B．does that | C．did you | D．does it |
________ has been growing concern over the health effects ____________ the September 11 attacks in the Financial District of Lower Manhattan.
| A．It; arising from | B．There; causing | C．There; arising from | D．It; caused |