— _____when has the country been open to
题型:选择题
问题:
— _____ when has the country been open to international trade?
— 1978, I suppose. [ ]
A. Since
B. In
C. From
D. After
— _____ when has the country been open to international trade?
— 1978, I suppose. [ ]
A. Since
B. In
C. From
D. After