I found the lecture hard to follow because it _______ when I arrived. 
#99091
A
started
B
was starting
C
would start
D
had started
推荐题目
The new play ______ next week.。
#101369
A
put on
B
was put on
C
will put on
D
will be put on
—— Where _____? —— I got stuck in the heavy traffic.I _____ here earlier. 
#104633
A
did you go; had arrived
B
have you been; would have been
C
were you; would come
D
are you; was
 —I will pick you up at 6 tomorrow morning. —So early! I _______ then.
#99528
A
will sleep
B
will have slept
C
will have been sleeping
D
will be sleeping