A) not buy B) not buying C) didn’t buy D) having not bought 正确答案： C
48. Our company recruited a new manager to ________ this important project.
A) see that B) under see C) oversee D) over see
正确答案： C
49. All the pupils _____ straight when the teacher came into the classroom.
A) sat up B) dined out C) cashed in D) passed for
正确答案： A
50. Rest assured that your friendship will be _____ with sympathy and kindness.
A) appreciated B) forged C) repaid D) imposed
正确答案： C
51. Language not only depends on its culture, but _____ structures reality for this culture.
A) in particular B) in theory C) in addition D) in turn 正确答案： D
52.Economic and trade cooperation between the two countries, which has been built on a consolidated foundation, still has _____ for further development and diversification.
A) evolution B) compromise C) contentment D) potential 正确答案： D
53. The attack on our nation is also an attack on the ideals that make us a nation. Our deepest national ______ is that every life is precious, because every life is the gift of a creator who intended us to live in liberty and equality.
A) requirement B) blessing C) commitment D) conviction 正确答案： D
54. It's exhausting ______ from Suzhou to Shanghai every day.
A) crisscrossing B) departing C) prying D) commuting