— I find it difficult to learn Physics well.— That's true. Nobody can learn it well _______ he works hard at it.

题型：单选题题类：常考题难易度：普通

广东省深圳市锦华实验学校2016届九年级下学期英语期中测试

— I find it difficult to learn Physics well.

— That's true. Nobody can learn it well _______ he works hard at it.

A、if B、because C、unless

举一反三

—Yeah. He is Tim he is in Miss Yang's class．

—Nearly 10 years. That's _______ this book is so classical and famous.

—Exciting, one piece of the music wasn't played quite well.

—Yes, they're not in my class.

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