1编号：49195题型：单选题测试正确率：72.27%
usually takes Mum about half an hour to cook supper.
2编号：43482题型：单选题测试正确率：75.92%
My friend, David, has brown hair and glasses.
3编号：43481题型：单选题测试正确率：48.73%
It is snowing outside. Remember to your hat when you go out.
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