问题
选择题
We have been informed that he had done _____ visits were essential by eleven o'clock last night. [ ]
A. all
B. what
C. that
D. all that
答案
答案:B
We have been informed that he had done _____ visits were essential by eleven o'clock last night. [ ]
A. all
B. what
C. that
D. all that
答案:B