题目内容：
Questions Read the article below about a report on employment.
Choose the correct word to fill each gap from A, B or C.
For each question (29-40), mark one letter (A, B or C) on your Answer Sheet.
This year's Corporate Travel exhibition will take place on 13 and 14 October. The exhibition is twice the size it was last year (29) __________the organizers have been successful in attracting many more (30)__________airlines, hotels and car rental companies than in the past. (31)__________150 companies will have stands (32)__________the exhibition.
During the two days of the exhibition, (33)__________will be a programme of seminars (34)__________a wide range of su,bjects related to business travel. Each of (35)__________ will provide professional advice on ways in (36)__________ firms can obtain a high level (37)__________ service at the most competitive prices. Participents will have the opportunity to learn (38)__________to achieve savings of up to 40% on (39) __________annual travel budgets.
The exhibition will be open 10:00 -- 17:00 on (40)__________days,
A．if
B．when
C．as
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