问题
选择题
It ____ that all the students were having lessons in the teaching buildings when the earthquake occurred.[ ]
A. happens
B. was happened
C. happened
D. was happening
答案
答案:C
It ____ that all the students were having lessons in the teaching buildings when the earthquake occurred.[ ]
A. happens
B. was happened
C. happened
D. was happening
答案:C