改错
16．Do you still remember the day which you joined the Party?
17．This is the boy his handwriting is the best in our class
18．It was the meeting which importance I didn't know．
19．My father，that has been away recently, wants to see you．
20．He has three sons，two of them are music lovers．
21．As you know it，he has left for America．
22．Miss Li，who you met，is our English teacher．
23．The computer center，that was opened last year，is very large．
24．My pen which writes smoothly was given to me by my sister．
25．Those who wants to see the film put up your hands．
26．Those have seen the film think highlv of it．
27．That is the way which they work．
28. I have made the same mistakes like you have．
29．Here is,so big a stone as no one can move it．
30．The news which a war broke out in the Middle East surprised us.
参考答案：
16．改which为when。
17．改his为whose。
18．改which为whose。
19．改tllat为who，非限制性定语从句，表示人的主格时用who。
20．改two of them为two of whom
21．去掉it，因为as在此句中是关系代词，作know的宾语。
22．改who为whom，非限制性定语从句。表示人的宾格。
23．改that为which。
24．改My为The，限制性定语从句的先行词不用物主代词和指示代词修饰。
25．改wants为want。
26．Those后面加who。
27．改which为that或in which．也可省去which。
28．改like为as，定语从句中主句中有the same．such。as，so时，关联词用as。
29．改as为that，that是从属连词引导状语从句；或去掉句中的it。
30．改which为that，这是同位语从句，不是定语
