Tourism, _______ it brings in money to a
题型:选择题
问题:
Tourism, _______ it brings in money to a country, can also result in damage to the World
Heritage sites there.
A.once
B.while
C.if
D.as
Tourism, _______ it brings in money to a country, can also result in damage to the World
Heritage sites there.
A.once
B.while
C.if
D.as