问题
选择题
Travelling by air is ____ more expensive than by train even though the air tickets are on discount
（打折）. [ ]
A. very
B. a lot of
C. many
D. far
答案
答案：C
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Travelling by air is ____ more expensive than by train even though the air tickets are on discount
（打折）. [ ]
A. very
B. a lot of
C. many
D. far
答案：C