八年级上人教版英语Unit1 课时练习（1a-2d）（有答案）2021-2022学年人教版英语八年级上册.docx

八年级上人教版英语Unit1 课时练习（1a-2d） 一、单项选择题： 1. You can’t pass the exam ______ you study hard. A. if B. when C. unless D. because 2. The teacher asked Ben ______ a difficult question in class. A. answer B. answering C. to answer D. answered 3. After trying many times, we were successful __