Question

【题目】Harry's mom looks young and beautiful. It's hard to imagine she is already _____ her ______.
A.in; fifty
B.in; fifties
C.on; fifties
D.in; fiftieth

Answer 1

【答案】B
【解析】句意：哈利的妈妈看起来年轻、漂亮。很难想象她已经五十几岁了。in one's fifties某人五十几岁，故选B。