题目内容


By the year 2020 scientists _____ a lot of research on AIDS.
A．had doneB．doC．are doingD．will have done
D
略
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--- Has Li Lei finished his work today?
--- I have no idea, but he ______ it when I saw him this morning.
A．had done B．would do C．was doing D．did

Unforgettable ______ her pale blue eyes that flashed like diamonds and thin lips wore a pleasant smile.
A．had beenB．wereC．wasD．is

The vegetables we ate for lunch ________ very good. They had been overcooked.
A．weren’t tastingB．weren’t tastedC．didn’t tasteD．haven’t tasted

---Please tell me what really happened.
---Oh, I _________, and I hit a parked car.
A．wouldn’t pay attentionB．didn’t pay attention
C．haven’t paid attentionD．wasn’t paying attention

She got up, _______ herself in a hurry and then went downstairs for breakfast.
A．dressingB．to dressC．dressedD．having dressed

--- Can you guess if they _______ to play basketball with us?
--- I think they'll come if they _________ free.
A．will come, will beB．will come, areC．come, areD．come, will be

All the new words ______up in the dictionary yet.
A．have lookedB．haven’t looked
C．have been lookedD．haven’t been looked

He is so careless that he always ______his school things at home.
A．forgets B．forgot C．leaves D．left

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