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Change the sentences into the present perfect continuous.
a. I swim for an hour.
b. He plays the guitar since he was seven years old.
c. How long they discuss?
d. She collects dolls for three years.
e. The office uses the machine since 1997.


Sagot :

Answer:

a. I am now swimming for an hour.

b. he has been playing this guitar since he was seven years old.

c. how long are they discussing?

d. she's been collecting dolls for 3 years

e. the office has been using this machine since 1997.