中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.I can see ten _____ in the picture.
| A: sheep |
| B: dog |
| C: pig |
| D: |
一次做对，真牛！
+5奖励规则>
- 提示1：VGVu5ZCO55qE5ZCN6K+N5bqU6K+l55So5aSN5pWw5b2i5byP44CC
- 答案：QQ==
VGVu5ZCO55qE5ZCN6K+N5bqU6K+l55So5aSN5pWw5b2i5byP44CCQuOAgUPpg73mmK/ljZXmlbDvvIxB5Y2z5piv5Y2V5pWw5Lmf5piv5aSN5pWw77yM5pWF6YCJQeOAgg==
本课配套习题挑战模式2/5
单选题
难度系数：
2.We should clean ____ twice a day.
| A: our tooth |
| B: our tooths |
| C: our teeth |
| D: |
一次做对，真牛！
+5奖励规则>
- 提示1：54mZ6b2/5LiN5q2i5LiA6aKX77yM5omA5Lul5bqU55So5aSN5pWw5b2i5byP44CC
- 答案：Qw==
54mZ6b2/5LiN5q2i5LiA6aKX77yM5omA5Lul5bqU55So5aSN5pWw5b2i5byP44CCdG9vdGjmmK90ZWV0aO+8jOWxnuS4jeinhOWImeWPmOWMluOAgg==
本课配套习题挑战模式3/5
单选题
难度系数：
3.My two brothers are both ______.
| A: policeman |
| B: policemans |
| C: policemen |
| D: |
一次做对，真牛！
+5奖励规则>
- 提示1：5Lik5Liq5ZOl5ZOl6YO95piv6K2m5a+f77yM5omA5LulcG9saWNlbWFu5bqU6K+l55So5aSN5pWw5b2i5byP
- 答案：Qw==
5Lik5Liq5ZOl5ZOl6YO95piv6K2m5a+f77yM5omA5LulcG9saWNlbWFu5bqU6K+l55So5aSN5pWw5b2i5byP77yM77yM5LiN6KeE5YiZ5Y+Y5YyW77yM5YW25aSN5pWw5b2i5byP5Li6cG9saWNlbWVu44CC
本课配套习题挑战模式4/5
单选题
难度系数：
4.There are two____ in the office.
| A: woman |
| B: womans |
| C: women |
| D: |
一次做对，真牛！
+5奖励规则>
- 提示1：5Lik5Liq5aaH5aWz77yM5omA5Luld29tYW7lupTor6XnlKjlpI3mlbDlvaLlvI/jgII=
- 答案：Qw==
5Lik5Liq5aaH5aWz77yM5omA5Luld29tYW7lupTor6XnlKjlpI3mlbDlvaLlvI/jgIJXb21hbueahOWkjeaVsOaYr+S4jeinhOWImeWPmOWMlu+8jOS4undvbWVu44CC
本课配套习题挑战模式5/5
单选题
难度系数：
5.
There____ some ____ in the river.
| A: is ,fish |
| B: are, fishs |
| C: is, fishs |
| D: are ,fish |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+U29tZeWQjueahOWPr+aVsOWQjeivjeeUqOWkjeaVsOW9ouW8j+OAgjwvcD4=
- 答案：RA==
PHA+U29tZeWQjueahOWPr+aVsOWQjeivjeeUqOWkjeaVsOW9ouW8j++8jGZpc2jljZXlpI3lkIzlvaLvvIzlnKjov5nph4zmmK/lpI3mlbDmhI/kuYnvvIzmiYDku6XosJPor63liqjor43kuZ/lupTnlKjlpI3mlbDlvaLlvI/jgII8L3A+
