（湖南省怀化市2014年高三第二次模拟考试）34. It was so nice of you to come to our aid. I don’t think we ______ it without you.

Listen! The fire engine is roaring! (消防车吼叫) — Oh, there ______ be a fire somewhere. How terrible!

I’m told that our plane will at least delay 3 hours. —What do you think has happened? —It is said to have been _______ by a terrible storm.

I’m writing to apologize for my absence from last week’s meeting. I was unexpectedly ________ at work.

The soft music sounds ________.We are all listening ______.It is wonderful .