How are you going to do that?里的that必须有,还是可以省略,还是一定不能有?

问:what are you going to be when you grow up?
答:I'm going to be a computer programmer.
问:How are you going to do ( that )?
为什么加that,是必须的吗?

第1个回答  2008-07-31
that是指代上面的 to be a computer programmer,可有可没有。本回答被提问者采纳
第2个回答  2008-08-01
可以没有
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