The scientist did ＿＿ experiments to test the new drug. A. a series of B. a good many of C. a great m...
2023-01-25 13:31:08 41次 2010年甘肃省高一下学期期末考试英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The scientist did ＿＿ experiments to test
the new drug.
A. a series
of B. a good many of C. a great
many D. a lots of
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