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3. How many times _____you ______( come) here?
Once.
Have
cleaned
have done
did
do
did
Has
seen
did
see
saw
have
come
4. I __________ (read) the novel twice. It’s interesting.
5. She ___________ (go) to Pairs, hasn’t she? Yes.
How ______ she _______(go) there?
She _______(go) there by air.
6. So far, many countries ______________(develop)
so fast.
7.Mr Chen ______(give) up smoking last year.
8.______ you ever _______(ride) a horse? Never.
9.He ________( keep) the book since two days ago.
have read
has gone
did
go
went
have developed