13.achieve

　　Sherry,how are you doing with your thesis?

　　Oh!my thesis,that's something I definitely don't want to talk about right now.I finish my first draft sometime ago,but my superviser said I should do more research if I want to achieve the quality he expects of me.

　　11.acquire

　　A patient may also acquire a tolerance for a certain drug, which means the patient has to take even a larger doses to produce the desired effect.

　　12.acquisiition

　　What's more,the study of language acquisition offers direct insight in the how human's learn.

　　13.action

　　If the disaster happens,fifity underground stations will be under water. Electricity,gas and phone services will be out of action.

　　14.adapt

　　Will animals and plants be able to adapt that quickly to change in the environment?

　　15.add

　　This is hopeless.This figures still don't add up right.Let's to calculations over again.

　　Yes,but why not do them tomorrow.It's very late now.

　　16.addition

　　Not long ago,researchers learned that four-day-olds could understand addition and subtraction.

　　The first thing is correspondence, we have a lot of standard letters and forms,so I suppose we need some kind of word processor.

　　Right,well,that's no problem. But it may be possible for you to get a system that does a lot of other things in addition to word processing.What might suit you is the MR5000 .That's over there,it's IBM compatible.

　　17.additional 7:30

　　Sue have more difficult time satisifying her first client,and she took several additional months to actually complete the project.

　　18.administion

　　After high school, I'd like to go to the college and major in business administration. I really like power and enjoy telling people what to do.

　　You're very ambious. But I'd rather spend my college days finding out what children are interested in.Child psychology is for me.

　　19.admire

　　Polish people are often admired for their immense enjoyment of the arts.

　　20.admit

　　I have never seen such an interesting show. I hope you enjoyed it as much as I did. I must admit that I felt sleepy during the two hours.

　　21.adversary

　　Drugs often have unwanted side effects.These usually cause minor discomfort such as a skin rash, headache or sleepless.Certian drugs, however, can produce serious adversary action.

　　22.advertisment

　　I saw your advertisment in the morning paper concerning the X-20 model.The lens seems to be excellent and flash is not bad.But do you think prize a little steep.

　　I think it's a good buy.The prise includes the leather case, you know?

　　23.affect

　　In order for a chemical to be a consider a drug,I must have capacity to affect how the body works.

　　24.affection

　　The best time to buy a baby-dog is when it's between six and eight years old so that it can transfer its affection from its mother to its master.

　　25.afford

　　We've lived here in Thornton for five years now and I think it's time to have the house painted.

　　You're right ,Mr Johns, our neigher, just had his house to painted, but we can not afford to do it only if we panit it ourselves.