It was______he was too clumsy to drive a car that Jim hadn"t learned to drive.
【正确答案】 C
【答案解析】解析:一看题意即可看出本题为强调句,所强调的是原因状语从句。强调原因状语从句时,此从句只能由because引导,因此排除A、B、D项,得出 C项为正确选择。