to learn
主语是the first thing i have to do算是定语,修饰主语的
或者说,be to do something 算是将来时
这不是be doing 的形式,它不是现在进行时
The first thing I have to do is(to learn ,learning)English
The first thing I have to do is(to learn ,learning)English
英语人气：623 ℃时间：2019-12-01 10:48:25
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