I wanted to know.Is he doing his homework

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I wanted to know.Is he doing his homework
练成含宾语从句的复合句

I wanted to know whether/if he was doing his homework.
再问：为什么是doing不是did
再答：你的原句中不是is he doing 吗？陈述就是he is doing（强调进行的）如果改成did，意思就不一样了。我想知道他是不是正在做作业。过去想知道的，所以，都用过去。 I want to know whether he is doing his homework
再问：那为什么是wanted
再答：你问题中不是： "I wanted to know" 要不就是 I want to know whether he is doing his homework(表示现在想知道）

I wanted to know.Is he doing his homework he is()doing his homework He is doing his homework He is doing his homework .翻译 He is j___ doing his homework. He is j___ doing his homework He is doing his homework 中文 he is doing his homework 改复数 He is b_____ doing his homework I wany to know后面是加what is he doing 还是what he is doing? He wanted to know He is doing his homework.He said改为宾语从句