问题
选择题
Having a trip abroad is certainly good for the old couple, but it remains _____ whether they will enjoy it. [ ]
A. to see
B. to be seen
C. seeing
D. see
答案
答案:B
Having a trip abroad is certainly good for the old couple, but it remains _____ whether they will enjoy it. [ ]
A. to see
B. to be seen
C. seeing
D. see
答案:B