Question

I want to know _________.

为什么looking after而不是looking??再举几个例子 I want to know _________.

A. whom is she looking after B. whom she is looking

C. whom is she looking D. whom she is looking after

Answer 1

选择D. whom she is looking after

首先从句中都是需要用陈述句的语序，所以a和c都不能选
另外look是"看"的意思，不及物动词，一般都是跟at/after等介词连用之后，后面才能加名词
look after是照看的意思，whom作为look after的宾语。整个句子的意思是我想知道她在照顾谁

Answer 2

look after 是照顾的意思，而looking是一个单词，不符合题目的要求