Question

Do you know_____for advice when we have problems? You can talk to your parents or teachers A w

Do you know_____for advice when we have problems?
You can talk to your parents or teachers
A who to talk B who we can talk C who to talk to D who can we talk to
那么为什么where to live(in)要把in省去？

Answer 1

C who to talk to

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Answer 2

选C
talk 是不及物动词 后面的 to 不能省略。
Do you know 后的宾语从句应是陈述句语序，因此应是：who we can talk to 因此D不对
特殊疑问词引导的宾语从句 = 特殊疑问词 + to do
因为 where 是副词 where to live = what place to live in

Answer 3

C
talk to sb about sth 向某人诉说某事

补充：
live in 后面需要接宾语的，where是副词，不能作宾语，因此说where to live是正确的
a big house to live in, 此时就必须有in， 因为其逻辑宾语是house。

Answer 4

C
宾语从句是陈述句语序，故排除D，另外，TALK 是不及物动词，接宾语时要用TO/WITH 连接，即TALK TO/ WITH SB ，再排除A与B

补充：因为WHERE 是副词，副词前不能用介词

Answer 5

C 因为who to talk to 中的who 是代词作talk to 宾语，而where to live 中的where 是副词作live 的状语，相当于which place to live in