Unfortunately when we arrived she _ __, So we only had time for a few words.
| A．just left | B．has just left | C．was just leaving | D．had just left |
---It is known to all that this factory pours lots of waste water into the Changjiang River every year.
---- _________ near my hometown.
| A．So does it | B．So it is | C．So the one does | D．So does the one |
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 |
--- What time are you planning to _____ tomorrow?
---It’s up to you.
| A．set off | B．put off | C．turn off | D．take off |
The whole family were sound asleep when the disaster_____.
| A．had taken place | B．took place | C．is taking place | D．has taken place |