问题补充：
The engineers are so busy that they have zero time for outdoor sports activities, they have the interest.
A. wherever
B. whenever
C. even if
D. as if
答案：
A. wherever
B. whenever
(答案→)C. even if
D. as if
解析：此处wherever无论哪里； whenever每当；even if即使；as if好像。句意：工程师们太忙他们没有时间进行体育活动，即使他们有兴趣爱好。根据句意选C。
