问题
选择题
Among the 15-year-old children, some ____ studying in university while others are still learning to read and
write. [ ]
A. should have been
B. would have been
C. can be
D. must be
答案
答案:C
Among the 15-year-old children, some ____ studying in university while others are still learning to read and
write. [ ]
A. should have been
B. would have been
C. can be
D. must be
答案:C