Bob often helped out at the old people's home in his spare time ____ he was at college.

1. Bob often helped out at the old people's home in his spare time ____ he was at college.

A. how B. where C. when D. who

【考点】

引导状语从句的从属连词;

【答案】

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单选题普通

1. My father spends much money on books ,____ he's not rich.

A. until B. if C. eventhough D. unless

单选题容易