[单项选择]You （　） all those clothes! We have a washing machine to do that sort of thing.
A. needn't have washed
B. shouldn't have washed
C. must not have washed
D. can not have washed

[单项选择]We have done all we could and now our cherished project is at the mercy of our new CEO.
A. under the guidance of
B. in the power of
C. on the verge of
D. on the agenda of

[单项选择]Where have you been We ______ you back earlier.
A. were excepting
B. are excepting
C. have excepted
D. except

[简答题]You will be pleased to learn that we have all the models from stock.

[简答题]We inform you that we have been engaged in this business for the past 25 years. We, therefore, feel that because of our past years' experience, we are well qualified to take care of your interests at this end.

[简答题]We wish to confirm you that we have booked your Order No.1234 for our hand tools.

[单项选择]All of US have felt pain．We have cut ourselves．We have been burned．Or we have had headaches．Some of us suffer pain rarely pain rarely. ___________ (46) Pain can take complete control of our body and mind，making it impossible to move and even to think．Yet we need pain．Without it，we would not know．1f we have hurt ourselves．It is our body’s warning system. ___________ (47) Pain is the most common reason we go to a doctor It is the most common reason we take medicines．Until recently，however, most doctors knew of only a few drugs that stopped some pains ___________ (48)But new knowledge about the process of pain is helping them to control pain better． Scientists have learned that the sense of pain is made up of both chemical and electrical signals. ___________ (49)Scientists also have learned that the nervous system sends two different kinds of pain messages to the brain：one very fast，the other slow．The first message is the warning signal．It moves at a speed of 30 meters a second．In les

[单项选择]We （　） for you everywhere. Where have you been
A. have looked
B. looked
C. have been looking
D. are looking

[填空题]

Ladies and gentlemen,
Welcome to you all. We are pleased to have you here to visit our company, Today, we will first (1) you around our company, and then you will go and see our (2) and research center. The research center was (3) just a year ago. You may. ask any questions you have during the visit. We will (4) to make your visit comfortable and worth while.
Again, I would like to extend a warmest welcome to all of you on behalf of our company, and I hope that you will enjoy our stay here and (5)

1（）

[单项选择]Only when we have weighted all the factors involved ______ decide when would be the best time to start.
A. did we
B. we did
C. can we
D. we can