Mr. and Mr. Phuong (offer) ___ free meals for the poor in Ha Noi so far
We (clean) ___ up the dirty streets in our area last Sunday.
The children (not finish) ___ painting the mural over graffiti yet
Tom (participate) ____ in ‘Green Summer’ programme before?
1,Have offered (So far : dấu hiệu htht)
2,Cleaned (Last :dấu hiệu qkd)
3,Haven’t finished (Yet : dấu hiệu htht)
4, Has participated (Before : dấu hiệu htht)
have offered
cleaned
haven’t finished
Has … participated
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