Section I Structure and Vocabulary Part A Directions:Beneath each of the following sentences, there are four choices marked [A], [B], [C] and [D].Choose the one that best completes the sentence.Mark your answer on ANSWER SHEET 1 by blackening the corresponding letter in the brackets with a pencil.(5 points)Example:I have been to the Great Wall three times _ 1979.[A] from [B] after [C] for [D] since The sentence should read, “I have been to the Great Wall three times since 1979.Therefore, you should choose [D]Sample Answer [A] to have caught [B] to catch [C] catching〔B〕[D] having caught 1.As Ill be away for at least a year, Id appreciate _ from you now and then telling me how everyone is getting along.[A] hearing [B] to hear [C] to be hearing [D] having heard 海纳百川，有容乃大；壁立千仞，无欲则刚。林则徐2.Greatly agitated, I rushed to the apartment and tried the door, _ to find it locked.[A] just [B] only [C] hence [D] thus 3.Doctors see a connection between increase amounts of leisure time spent _ and the increased number of cases of skin cancer.[A] to sunbathe [B] to have sunbathed [C] having sunbathed [D] sunbathing 4.Unless you sign a contract with