6. Of the millions who saw Haley’s comet in 1986, how many people __________long enough to see it return in the twenty-first century.
(A) will they live
(B) they will be living
(C) will live
(D) living
答案：C
测试点：谓语。
分析：这句话有主语但缺少谓语动词，所以选择能作谓语的(C)。(A)、(B)结构是错误的，而且都重复了主语they;(D)不是谓语动词形式。
7. __________that fear, happiness, sadness, and surprise are universally reflected in facial expressions.
(A) Anthropologists have discovered
(B) Anthropologists discovering
(C) The discovery by anthropologists
(D) Discovered by anthropologists
答案：A
测试点：复合句。
分析：空格后紧接that时，前一定是主句。故要在4个答案中选主谓语完整的结构即(A)。其余3个答案都无谓语动词。
解题要点：连接词that在TOEFL结构题中是至关重要的提示符号。它表明此句是复合句，故that前后均应是主谓完整的句子，即主句和从句。
8.In 1964__________of Henry Ossawa Tanner’s paintings was shown at the Smithsonian Institution.
(A) was a major collection
(B) that a major collection
(C) a collection was major
(D) a major collection
答案：D
测试点：主语。
分析：此句缺少主语。答案中只有(D)是名词结构，能够充当主语。
9. __________irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued.
(A) Its
(B) Where its
(C) Since its
(D) Because of its
答案：D
测试点：介词短语。
分析：逗号后为一完整的句子，则逗号前只有两种可能;短语或从句。4个答案中无一有谓语动词，故正确答案只可能是短语。因此，选择(D)。Because of为介词短语。(C)since作介词时是“自从”的意思，如表示“因为”则是连词。
10.In order to remain in existence,__________must, in the long run, produce something consumers consider useful or desirable.
(A) a profit-making organization
(B) a profit-making organization which
(C) therefore a profit-making organization
(D) whichever a profit-making organization
答案：A
测试点：主语。
分析：助动词must前一定是主语。应选择名词性结构作主语，即(A)
