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Tom was in the comp last Jume

My friend went to Moscow last summer

Tom was in the camp last June
Was Tom  in the camp last June?
Was Tom  in the camp last June or last July?
Who was in the camp last June?
Tom was in the camp last June, wasn't he?
Where was Tom  last June?

My friend went to Moscow last summer.
Did my friend go to Moscow last summer?
Did my friend go to Moscow last summer or last winter?
Who went to Moscow last summer?
My friend went to Moscow last summer, didn't he?
When did my friend go to Moscow?