Question

Lily doesn't know()she and her friends can do to help the little boy（）parents have left their

Lily doesn't know()she and her friends can do to help the little boy（）parents have left their hometown
for making money
A that whose
B what those
C waht who
B how who

Answer 1

A，这句的意思是lili不知道他和朋友该怎样帮助那个父母都已经离开城镇的小男孩。
know后接了一个宾语从句，代替宾语一般用what或that，应用what，后面又有一个定语从句，连接所属关系用whose。这里that作do的宾语，不能省。

哪些宾语从句不可以省略引导词that当that作learn,suggest,explain,agree,wonder,prove,mean,state,feel,hold等动词的宾语时;当宾语从句较长时;当主语状语置于主句尾,宾语从句之前时;当主语谓语动词(包括非谓语动词)与宾语从句之间有插入语时;当一个动词带有两个或两个以上宾语从句时,此时第一个that可以省略,第二个that不可以省略;当宾语从句中的主语是this,that或this,that做主语的定语时;当宾语从句是双宾语中的直接宾语时;当宾语从句的主语是非谓语动词或主语从句时;当主语中的谓语动词是固定词组时;当宾语从句有it做其先行词时;在直接引语中,转述分句把宾语从句隔开时.

Answer 2

A,that 在这里没有意思，应该是谁的父母

Answer 3

答案选择A.

追问

为什么？