Exchange rates are generally determined by the __ of supply and demand in the market.(A)invention(B)
21.While I am away on business, my neighbor will help me _____ the dog. It needs to go out for exerc
2.The __ is a very ordinary object. It keeps the rain and the sun off people.(A)book(B)shoes(C)tire(
5.Next time you buy canned or frozen seafood look carefully at the __. You might see the ingredients
6.Mr. Lin is a __ teacher. No talking or eating is allowed in his class.(A)broad(B)frank(C)strict(D)
7.Donna has to have regular checkups, and she has to __ medicine every day.(A)do(B)make(C)bring(D)ta
10.Since most of the participants could not make it because of the rain, the meeting had to be __ un
12.Doctors sometimes give special chewing gum to people wanting to quit __.(A)smoking(B)smoke(C)to s
13.The hospital made a mistake, because both babies were born at the hospital __ the same day.(A)at(
17.I wish that, While I was in New York last year,I __ my teacher Dr. Hills.(A)visited(B)had visited