问题补充：
The engineers are so busy that they have no 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：连词辨析题。A. wherever “无论何处” B. whenever“无论何时” C. even if“即使” D. as if“似乎、好像”“即使工程师有兴趣，他们是如此忙以至于没有户外运动的时间”
