Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 19 to 23. Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (19)................ecosystems. If there is too little rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals (20)................feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds (21)................. Polluting the air, soil, and water can harm ecosystems. Building (22)................on rivers for electric power and irrigation can harm ecosystems around the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of (23)................fish, cutting down trees, and building reservoirs. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.(21) A.out B.in C.go D.fly
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.The student next to me kept chewing gum. That bothered me a lot.A.A. The student next to me kept chewing gum bothering me a lot.B.B. The student next to me kept chewing gum, that bothered me a lot.C.C. The student next to me kept chewing gum bothered me a lot.D.D. The student next to me kept chewing gum, which bothered me a lot.
He was ________ speaker.A.so a good B.how good a C.so good aD. what a good
________(43)A.OthersB.AnotherC.MeanwhileD.Further
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions._________ have made communication faster and easier through the use of email and the Internet is widely recognized.A.It is that computersB.That computersC.Computers thatD.That it’s computers
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.After many years of unsuccessfully endeavoring to form his own orchestra, Glenn Miller finally achieved world fame in 1939 as a big band leader.A.offering B.deciding C.requesting D.trying
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.People nationwide have acted without to provide aids for the victims in the hesitation disaster-stricken areas. A.uncertainty B.willingness C.awareness D.reluctance
Choose the best answer to complete the following sentences.We had a long way to go so we..................off very early.A.made B.put C.setD.had
...................... flowers are usually made of plastic or silk.A.Unreal B.False C.Artificial D.Untrue
A.marks B.curlsC.collapseD.inherits
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