The coal miners    in the coal mine for 10 hours before we came to their rescue.
#103310
A
had trapped
B
had been trapping
C
had been trapped
D
would have been trapped
推荐题目
I was out of town at that time, so I don’t know exactly how it ______.
#101769
A
was happening
B
happened
C
has happened
D
happens
It's the third time ________ late for school this week. 
#101545
A
that you are
B
you are
C
when you arrived
D
that you have been
When the old man ______ to walk back to his house, the sun ______ itself behind the mountain. 
#100109
A
started; had already hidden
B
was starting; hid
C
had started; had already hidden
D
had started; was hiding