do+ing?

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do+ing?do+ing?do+ing?Tolearnaforeignlanguagewellisnoeasyjob.这句话的todo可以转化为ing吗?完全可以不能,不定式表目的可以.Learni

do+ing?
do+ing?

do+ing?
To learn a foreign language well is no easy job.这句话的to do可以转化为ing吗?完全可以 不能,不定式表目的 可以.Learning a

有的。比如说what are you doing?