__________ H7N9 is a deadly virus, it is still safe to eat thoroughly-cooked chicken.
| A．Until | B．While |
| C．If | D．Since |
33. She told me that she had mailed part of the products and that the rest ______ in a few days.
| A．has followed | B．have followed | C．was following | D．were following |
When I got there, the meeting _____ for ten minutes.
| A．has been on | B．had begun | C．had been on | D．has begun |
湖南省怀化市2014年高三第二次模拟考试）27. The retired teacher is said to have returned from the USA, where he ______ by some of his old students.
| A．would be visited | B．visited | C．had been visited | D．have been visited |
24. My mother _____ all the cleaning for my family, but recently she has been too busy teaching to do it.
| A．will do | B．is doing | C．does | D．had done |
The famous reporter, who is said to have gone back to America last year, _____in China for almost twenty years.
| A．lived | B．was living | C．has lived | D．had lived |