试题题干
Fill in the blanks with the words given in brackets. Make changes or add something where necessary．
They have four children, all 
(of) are now at school.
参考答案
试题解析
本题考查代词。后半句为从句修饰children，又因为of是介词，介词后面是宾语，所以这里填who的宾格形式whom。
句意：他们有四个孩子，现在都在上学。
Fill in the blanks with the words given in brackets. Make changes or add something where necessary．
They have four children, all (of) are now at school.
本题考查代词。后半句为从句修饰children，又因为of是介词，介词后面是宾语，所以这里填who的宾格形式whom。
句意：他们有四个孩子，现在都在上学。