急！英语高手进来帮忙解题、

1.Time is changing fast, while some old customs stay_______

A. a same

B. the same

C. the same as

2.Ping-pong is popular in China, ______ both young and old can____.

A. in which; take part

B. in it ; take part

C. in which; take part in

希望高手们能告诉我理由。。。在线等！

1.B

2.A

A and B are the same.这是固定用法.这道题就是把are改成stay,当然你还可以说A and B look the same.等等...

还原就是Both young and old can take part in ping-pong(which指的就是乒乓)

B C

1.B same前面接定冠词2.A which代表前面的china，前面要加in .这是基本的语法知识

1.A 2.A

一特指习俗 用the 不缺宾语 不用as

二宾语从句 前后无论哪个必须带一个in

BA

第一题由于后面没有宾语，所以不能选C

第二题为非限制性定语从句，由于是修饰ping-pong，当然是take part in

B,C后要加名词

A，TAKE PART IN STH参加---，IN提前了，后面当然没了

1.B stay the same 保持不变

2.A in which both young and old can take part 前面有了in 后面就不需要了。