__________ medical science has achieved control over several dangerous diseases, what worries us is that some of them are returning.
| A．Since | B．Unless | C．However | D．Although |
It was ______ that I didn’t like to leave my room.
| A．so a cold day | B．such cold a day |
| C．too cold a day | D．so cold a day |
In his new book, the writer _______ his memories of village life.
| A．set about | B．set down |
| C．set up | D．set out |
I’d appreciate ______if you would give me some advice on English learning.
| A．that | B．it | C．this | D．you |
John thinks it won’t be long ______he is ready for his new job.
| A．when | B．after | C．before | D．since |
—Have you ever seen the TV program Dad, Where Are We Going?
—Yes. It’s the best program______ I have seen in the past few months.
| A．which | B．where | C．when | D．that |