1编号：3183题型：单选题测试正确率：85.11%
Look, there is a bird flying in ______ sky.
2编号：3166题型：单选题测试正确率：78.02%
______ Changjiang River is the longest river in China.
3编号：3165题型：单选题测试正确率：55.18%
Lucy spends ______ hour doing her homework every day.
4编号：3164题型：单选题测试正确率：60.87%
—What would you like, sir? — ______ glass of water, please. Thank you.
5编号：3163题型：单选题测试正确率：33.44%
The girl is a friend of ______.
6编号：3134题型：单选题测试正确率：64.69%
Which do you prefer, ______ or ______ ?
7编号：3131题型：单选题测试正确率：68.75%
Are those your ______ ?
8编号：3007题型：单选题测试正确率：31.2%
定义“□”：，6□4=（）
9编号：3006题型：单选题测试正确率：22.73%
=（）
10编号：3005题型：单选题测试正确率：72.31%
提醒:
，6□4=（）
=（）
=（）