Bill always seems so confident, but he’s extremely shy.
A. in vain
B. in contrast
C. in reality
D. in surprise
网友回答
A. in vain
B. in contrast
(答案→)C. in reality
D. in surprise
解析：句意：Bill总是看起来很自信，实际上他非常害羞。in vain徒劳无益地；in contrast相比之下；in reality实际上；in surprise惊奇地，选C。