— How long do you think it will be _____
题型:选择题
问题:
— How long do you think it will be _____ President Hu Jintao makes another visit to America?
— It all depends. [ ]
A. when
B. that
C. before
D. until
— How long do you think it will be _____ President Hu Jintao makes another visit to America?
— It all depends. [ ]
A. when
B. that
C. before
D. until