单项选择题
A.go B.went C.would go D.goes
Before they left the factory, all the cars were careful...
单项选择题Before they left the factory, all the cars were carefully tested for（）
A.defects B.flaws C.faults D.errors
A 200-year-old building is very old in American（）A.term...
单项选择题A 200-year-old building is very old in American（）
A.terms B.points C.outlooks D.definitions
He who wants to succeed must（）difficulties and bitterne...
单项选择题He who wants to succeed must（）difficulties and bitterness first.
A.undertake B.understand C.undergo D.underline
