问题

By the time the tornado ended, more than 700 people ________.
A:have killed
B:have been killed
C:had killed
D:had been killed;
B:have been killed
C:had killed
D:had been killed;
正确答案是:
同类题型
Students ______ remain in their seats until all the exam papers have been collected.
The shop ___ from 8 am. to 5 p.m. every day ,but it ______ at 9:00 pm at weekends..
I has italways reminds me of my childhood in Paris.
_ his grades with Arnold’s, Georgewas quite satisfied.
I saw Li Ming __________ a black coat in the room but Ithought he looks nice ____ white.