How much does it cost to built the school library — Four yuan.

We shouldn’t have come north for Christmas vacation. If we _______, we wouldn’t be stuck in thesnow right now.[ ]

into the accident, the policeconcluded that both of the drivers were responsible for it．

(2009福州市高中毕业班第一次单科质量检查) We were very busy yesterday. Otherwise we _____part in the discussion.

TFBOYS’ songs ____ sweet and many of us like listening to them.