they are doing better in English now是DO BETTER IN 的现在进行时,请问大家be good at有现在进行时吗或者,比如I am good at studying English,就是 现在进行时?,如果不对,

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they are doing better in English now是DO BETTER IN 的现在进行时,请问大家be good at有现在进行时吗或者,比如I am good at studying English,就是 现在进行时?,如果不对,
they are doing better in English now是DO BETTER IN 的现在进行时,请问大家be good at有现在进行时吗
或者,比如I am good at studying English,就是 现在进行时?,如果不对,

they are doing better in English now是DO BETTER IN 的现在进行时,请问大家be good at有现在进行时吗或者,比如I am good at studying English,就是 现在进行时?,如果不对,
不对,be good at sth(doing sth)是一个固定搭配,也就是说be good at后面一定要加名次,但为什么要在动词后面加现在进行时是因为党动词加上ing时,动词转换成动名词.
至于,do better in,没有这样的说法,只有搭配do well in sth(doing sth)用法和be good at 一样,后接名词或者动名词,与句子的时态没有关系.

不是进行时，本身它后面要加动名词形式

DO BETTER IN 是不对的,没有这个说法
do better 是做的更好, in 只是介词
be good at 没有进行时态,意识是 擅长...

be good at (doing sth )是固定搭配，be good at 后面只能+动词ing形式或者名词，这与时态没有关系

What are they doing? what are they doing? what are they doing?急用! 还有一题:What.are.they.doing?They.are还有一题:What. are. they. doing?They. are the water What are they doing怎么回答 They are doing some reading.改为一般现在时 What are they doing英语作文 They are doing some very important ( ) (work) what are they doing怎么读 __________ __________ uesful work they are doing! What are they doing?--They___(play soccer) They are doing some English _(练习). They are doing homework now.改为祈使句 He watches TV______________._________ are they doing? what are they doing with it? what are they doing for vacation中文 连词成句they、 soon、 bette、r will、 be What are they busy 后用加doing吗?（Wat are they busy doing?)