44 We hadn’t met for 20 years, but I recognized her __________ I saw her.

　　A) for the moment B) the moment when

　　C) at the moment when D) the moment

　　45 Though he was born and brought up in America, he can speak __________ Chinese.

　　A) smooth B) fluent

　　C) fluid D) flowing

　　46 Government reports, examination compositions, legal documents and most business letters are the main situations __________ formal language is used.

　　A) in which B) on which

　　C) in that D) at what

　　47 Fifty years ago, wealthy people liked hunting wild animals for fun ________ sightseeing.

　　A) than to go B) rather than to go

　　C) more than going D) other than going

　　48 If the building project __________ by the end of this month is delayed, the construction company will be fined.

　　A) to be completed B) is completed

　　C) being completed D) completed

　　49 He wrote an article criticizing the Greek poet and won __________ and a scholarship.

　　A) status B) fame

　　C) faith D) courage

　　50 Jack wishes that he __________ business instead of history when he was in university.

　　A) had studied B) study

　　C) studied D) had been studying

　　51 The older New England villages have changed relatively little __________ a gas station or two in recent decades.

　　A) except B) besides

　　C) in addition to D) except for

　　52 The Car Club couldn’t __________ to meet the demands of all its members.

　　A) ensure B) guarantee

　　C) assume D) confirm

　　53 Extensive reporting on television has helped to __________ interest in a wide variety of sports and activities.

　　A) gather B) generate

　　C) assemble D) yield

　　54 The president promised to keep all the board members __________ of how the negotiations were going on.

　　A) informed B) inform

　　C) be informed D) informing

　　55 Eating too much fat can __________ heart disease and cause high blood pressure.

　　A) contribute to B) attribute to

　　C) attend to D) devote to