--- Cathy, why does your roommate look angry?
--- I’m also feeling puzzled. Maybe I ______ a nerve while asking about her former boyfriend.
| A．have touched | B．was touching | C．had touched | D．touched |
—The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
—Oh, dear! She _______ a lot of difficulties!
| A．may go through | B．might go through |
| C．ought to have gone through | D．must have gone through |
It was in the lab, _______ was taken charge of by Mrs Smith, they found the missing necklace.
| A．where; that | B．that; that | C．which; that | D．which; where |
_______ for his action on the playground, but he is also famous for the things that he does off the playground.
| A．Not he is only known | B．Not only is he known |
| C．Only is he known not | D．He is only not known |
I'm moving to the countryside because the air there is much fresher than _______ in the city.
| A．ones | B．one | C．that | D．those |
—Is Alice still performing?
—I'm afraid not. She is said _______ the stage already as she has become a director.
| A．to have left | B．to leave |
| C．to have been left | D．to be left |