1.September 11,2001 is the day _____we will never forget.
1.September 11,2001 is the day _____we will never forget. A.that B.when C.on which D.on that 2.Is this village ___some students visited last year? A.where B.which C.that D.the one 1.为什么不是选when 2.为什么不选which