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)
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。