The boy (who is)reading the book,可以省略吗

秦立明 The boy who is Who is the boy ( ) brown? the boy is learning how (read) English. that,the,tree,who,boy,in,is(?) Who is( ) boy under the tree? that, the, tree, who, boy, in, is, who is the boy? 怎么回答? “Who is the boy in black? Who is the boy and the girl 还是Who are the boy and the girl The boy is my brother who is on the bike. The boy is learning how _____ (read)English The little boy is not old enough (read). who is the boy?与 who is that boy?的区别 who is the boy?与 who is that boy?的区别 The boy who is called Tom is my brother.句子成分 who is This boy who is the boy-----the gteen sweter 填什么介词 The boy (who is)reading the book,可以省略吗