–Tom, what’s the matter with you? You look so worn out!
--Nothing serious. I ____ my new house all the day and I am afraid I won’t finish until tomorrow afternoon.
| A．have whitewashed | B．am whitewashing |
| C．have been whitewashing | D．shall be whitewashing |
The reform project _______ by Mr. White ________ at the meeting now.
| A．put forward; is discussed |
| B．has been put forward; is being discussed |
| C．is put forward; is discussed |
| D．put forward; is being discussing |
______ of danger in the street at night, she had to go home, with a friend _____ her.
| A．Warned ; accompanied | B．Warning; accompanying |
| C．Having warned; accompanied | D．Having been warned; accompanying |
— Is it convenient if I call you up at 9 tomorrow morning?
— I am afraid not. I _____ a group of visiting teachers then.
| A．am meeting | B．will meet | C．will be meeting | D．will have met |
Seeing the chemical ________ to the sunlight, Mr. Lee warned the workers to be careful when dealing with it.
| A．to expose | B．exposing | C．exposed | D．being exposed |
— So many ages since I last saw you that I ____________ you at all!
— I wouldn’t have, either, if someone _____________ your name.
| A．didn’t recognize; hadn’t called | B．didn’t recognize; didn’t call |
| C．haven’t recognized; didn’t call | D．wouldn’t have recognized; hadn’t called |
Be careful with such things. If you , you’ll drop them.
| A．don’t | B．won’t | C．aren’t | D．do |
It __________ Tom that parked the car here, as he is the only one with a car.
| A．may be | B．might have been | C．must have been | D．could be |
Have you considered how weak humans are a volcano, hurricane or earthquake?
| A．comparing with | B．compared with |
| C．to compare with | D．having been compared with |
—Why does the lake smell terrible?
—Because large quantities of water______.
| A．have polluted | B．is being polluted |
| C．has been polluted | D．have been polluted |
—Remember how we met for the first time, Dick?
—Of course I do．You ______ to the teachers’ office hurriedly and ______ me．
| A．had walked; weren't noticing | B．were walking; didn't notice |
| C．had been Walking; noticed | D．walked; had noticed |
His father told me that he __________ for the United States three days __________.
| A．has left; ago | B．had left; ago | C．left; ago | D．had left; before |
______ of danger in the street at night, she had to go home with a friend ____ her.
| A．Warning; following | B．Having warned; following |
| C．Warned; followed | D．Having been warned; following |
.People in developed countries are supposed ______ more healthy food before than what they have today.
| A．to be had | B．to have | C．had | D．to have had |
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