He had to pause from time to time to wipe the sweat from his forehead, because the air-conditioning system _________.
#64232
A
broke in
B
broke up
C
broke out
D
broke down
推荐题目
Please______the numbers and I’m sure they will ______more than 2000.
#84482
A
add;add up
B
add up;add up
C
add up;add up to
D
add;add up
–Will you ______me ____out this problem myself?---OK.
#77189
A
make; work
B
permit; working
C
let; work
D
allow; work