-- Why didn’t you stop the ball?-- I could catch it, a boy from Class Three suddenly ap——青夏教育精英家教网—

摘要： -- Why didn’t you stop the ball?-- I could catch it, a boy from Class Three suddenly appeared and caught it. A. Until B. When C. After D. Before

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-- Why didn’t you stop the ball?

-- ________ I could catch it, a boy from Class Three suddenly appeared and caught it.

A. Until B. When C. After D. Before

—Why didn’t you stop the ball?

—________ I could catch it, a boy from Class Three suddenly appeared and caught it.

　　A. Until

　　B. When

　　C. After

　　D. Before

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