单项选择题
A.optimistic B.optional C.outstanding D.obvious
We agreed to accept（）they thought was the best tourist ...
单项选择题We agreed to accept（）they thought was the best tourist guide.
A.whatever B.whomever C.whichever D.whoever
Wouldn't you rather your child（）to bed early?A.goB.went...
单项选择题Wouldn't you rather your child（）to bed early?
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
