46 There was a big hole in the road which ________ the traffic.

　　A) set back B) stood back

　　C) held up D) kept down

　　47 Many a delegate was in favor of his proposal that a special committee ________ to investigate the incident.

　　A) were set up B) was set up

　　C) be set up D) set up

　　48 In the Chinese household, grandparents and other relatives play ________ roles in raising children.

　　A) incapable B) indispensable

　　C) insensible D) infinite

　　49 Eye contact is important because wrong contact may create a communication ________.

　　A) tragedy B) vacuum

　　C) question D) barrier

　　50 There was such a long line at the exhibition _____ we had to wait for about half an hour.

　　A) as B) that

　　C) so D) hence

　　51 There is no ________ to there house from the main road.

　　A) access B) avenue

　　C) exposure D) edge

　　52 ________ energy under the earth must be released in one form or another, for example, an earthquake.

　　A) Accumulated B) Gathered

　　C) Assembled D) Collected

　　53 He wasn’t appointed chairman of the committee, ________ not very popular with all its members.

　　A) to be considered B) considering

　　C) being considered D) having considered

　　54 The twentieth century has witnessed an enormous worldwide political, economic and cultural ________.

　　A) tradition B) transportation

　　C) transmission D) transformation

　　55 The ________ stuck on the envelope says “By Air”.

　　A) diagram B) label

　　C) signal D) mark

　　56 Mobile telecommunications ________ is expected to double in Shanghai this year as a result of a contract signed between the two companies.

　　A) capacity B) potential

　　C) possession D) impact

　　57 Reading ________ the lines, I would say that the Government are more worried than they will admit.

　　A) behind B) between

　　C) along D) among