The twin sister______(learn)Chinese since they came to China.I often mistake Lucy____Lily.A.as B.make C.with D.forhave been learning不是要 have been +v过去分词 怎么是learning 不是learned

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Thetwinsister______(learn)ChinesesincetheycametoChina.IoftenmistakeLucy____Lily.A.asB.makeC.withD.fo

The twin sister______(learn)Chinese since they came to China.I often mistake Lucy____Lily.A.as B.make C.with D.forhave been learning不是要 have been +v过去分词 怎么是learning 不是learned
The twin sister______(learn)Chinese since they came to China.
I often mistake Lucy____Lily.A.as B.make C.with D.for
have been learning
不是要 have been +v过去分词 怎么是learning 不是learned

The twin sister______(learn)Chinese since they came to China.I often mistake Lucy____Lily.A.as B.make C.with D.forhave been learning不是要 have been +v过去分词 怎么是learning 不是learned
mistake for 是固定搭配,“错把什么误认为什么”
since是完成式的标志,因为动作是从过去一直持续到现在,一直在进行的,要用现在完成进行时