It was the second-hand bus that the mechanic spent the whole afternoon in the factory.
A. in repair
B. repaired
C. repairing
D. to repair
网友回答
A. in repair
B. repaired
(答案→)C. repairing
D. to repair
解析：考查强调句型。被强调部分为spent的宾语而宾语要由名词、代词、动名词等充当所以要选C. repairing。 修理工花费了整个下午在厂子里修理这辆二手车。