问题
选择题
It was ______ the second-hand car that the mechanic spent the whole afternoon in the factory.
A．in repair
B．repaired
C．repairing
D．to repair
答案
答案：C
考查非谓语动词。It is … that …为强调句型，repairing the second-hand car为动名词做主语，故选C。