问题补充：
Now young people to use computer to develop their skills.
A. are trained/ problem solving
B. are being trained/ solving problem
C. are being taught/ problem solving
D. are taught/ solving problem
答案：
A. are trained/ problem solving
B. are being trained/ solving problem
(答案→)C. are being taught/ problem solving
D. are taught/ solving problem
解析：第一个空考查被动语态。根据Now故用现在进行时的被动语态。解决问题的：problem solving，solving作后置定语。句意：现在许多年轻人被教给使用电脑来开发他们解决问题的能力。故选C。
