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阶段滚动卷(三)
（建议用时：40分钟）
Ⅰ. 单项填空
1. I was embarrassed to admit that yesterday I a serious error.
A. acted B. committed
C. performed D. completed
2. (原创) Some people are quite afraid of the H7N9 bird flu virus, but it is not as deadly as other bird flu viruses.
A. entirely B. frequently C. actually D. gradually
3. (2013·银川模拟) —Peter won the first prize in the national Chinese competition.
—Oh, really? I’m glad that his effort at last .
A. worked out B. got back C. paid off D. turned out
4. When you read the reference book, you’d better make a mark you have any doubts.
A. which B. at which
C. where D. in where
