Female pandas usually have one or two babies ________.
—Have you ever been to Shanghai? —Yes.I________there a few months ago. A.have been B.went C.have gone
—Would your younger brother go for a picnic this Sunday? —If I don’t go,________.
It’s said that________of the water around the world________polluted.
She has never been to the city,________she? A.doesn’t B.hasn’t C.has
2013福建福州)—Is James at home? —No,he________Ya’an to be a volunteer. A.has gone to B.has been to C.is going to