Canada's economic wealth is closely link
题型:选择题
问题:
Canada's economic wealth is closely linked to _______ of the US, which buys three-quarters of its exports.
A.which
B.what
C.that
D.one
Canada's economic wealth is closely linked to _______ of the US, which buys three-quarters of its exports.
A.which
B.what
C.that
D.one