It's been five years ( ) we met last year. (for, since)
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Mike and his parents ( ) the north for half a year.(have been to, have gone to, have been in , have been)
Mum is not at home now. She ( ) the shop. (have been to, have gone to, have been in , have been)
( ) you ever ( ) to Kunming? Never. (have been to, have gone to, have been in , have been)
Where ( ) you ( ) these days?(have been to, have gone to, have been in , have been)