This is the reason______computers will never be able to replace man. A.which B.as C.that D.why 2.We were deeply impressed by the teachers and schools _____ we had visited there. A.which B.whom C.who D.that 3.They arrived at a farmhouse, in front of ______sat a small boy. A.which B.who C.that D.whom 4.I'll tell you _____ he told me last night. A.all B.all what C.that all D.all which 5.A child _____ parents are dead is called an orphan. A.who's B.whose C.which D.who 6.Is this the museum _____ you visited the other day? A.in which B.that C.the one D.where 7.The train _____ she was traveling was late. A.on which B.in that C.where D.which 8.The factory ______we'll visit next week is not far from here. A.to which B.where C.which D.in which 9.October 15th is his birthday,________I will never forget. A.when B.which C.what D.that 10.There is no simple answer,________is often the case in science. A.as B.when C.that D.where