Underline Present Perfect or Present Perfect Continuous:
a) My sister has gone/has been going to the library.
b) He has read/has been reading his book for 7 days.
c) How long have you learned/have you been learning English?
d) I haven't travelled/haven't been travelling to the USA before.
e) He has lost/has been losing his wallet.
f) I have swum/have been swimming all day. I'm tired.
g) I haven't called/haven't been calling her.
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