6.The first inhabitants of the territories ------Canada came across the Bering Strait and along the edge of the Arctic ice.
(A)make up that now
(B)make up now that
(C) that make up now
(D) that now make up
答案是D
想要請問C.D now放的位置不一樣有什麼差別?
選到C了T____T~
好心人幫我解答一下吧~~大感謝^^