1 ——————sister is a teacherA She B She's C Her2 Xi'an is one of the __in ChinaA old city B oldest cty C oldest cities3 I don't have a ruler,Can I use_______?A yous's B your C you4 Wht ___you doing at 8:00 last night?I__ the Intenet.A did,

1 ——————sister is a teacherA She B She's C Her2 Xi'an is one of the __in ChinaA old city B oldest cty C oldest cities3 I don't have a ruler,Can I use_______?A yous's B your C you4 Wht ___you doing at 8:00 last night?I__ the Intenet.A did,
1 ——————sister is a teacher
A She B She's C Her
2 Xi'an is one of the __in China
A old city B oldest cty C oldest cities
3 I don't have a ruler,Can I use_______?
A yous's B your C you
4 Wht ___you doing at 8:00 last night?I__ the Intenet.
A did,surfed B were was surfing C did ,was surfig

1 ——————sister is a teacherA She B She's C Her2 Xi'an is one of the __in ChinaA old city B oldest cty C oldest cities3 I don't have a ruler,Can I use_______?A yous's B your C you4 Wht ___you doing at 8:00 last night?I__ the Intenet.A did,
为你解答.
（C）1 （Her）sister is a teacher
她的姐姐是位教师.
解释：名词前要用形容词性物主代词.

（C）2 Xi'an is one of the （oldest cities） in China
西安是中国最古老的城市之一.
解释：one of + 名词复数,最……的之一.
（A）3 I don't have a ruler, Can I use （yours）?
我没有尺子,可以用你的吗?
解释：这一空要填名词性的物主代词.yours相当于your ruler.
（B）4 Wht （were）you doing at 8:00 last night? I （was surfing） the Intenet.
昨晚八点你在干嘛? 我在上网.
解释：这句是过去进行时态,在过去的某个特定时间发生.

1 C Her 形容词性的物主代词
2 C oldest cities 最古老的多个城市之一
3 A yours (没有 ‘s) 名词性物主代词
4 B were, was surfing 在昨晚8点的时候，你正在做什么？正在上网。

1.　C，名词前用形容词性物主代词。
2.　C，最古老的城市之一，最高级
3.　答案是yours，后面没有名词，应该用名物代。
4.　B，　昨天晚上8点正在做什么，过去进行时

1 c 她的姐姐
2 c one of+动词最高级+名词复数
3 a yours yours代指名词 你的尺子
4 b 结合前后用法 AC自动排除 前后用法不一致
希望对你有帮助

1. c her 她的

2. b oldest city特指古老的城市，专用名词，不用复数

3. a your's 表示你的尺子。your 后面必须接东西，不能独立用。

4. b doing与be动词搭配，所以用were（过去式），回答也用过去进行时。