_______—I got caught in the traffic, or I would have been here sooner.

__________ to sun, rain and wind fora long time, the stone split（裂开）.

What about _____ English-Chinese dictionary on thebookshelf—In my opinion, it’s _____ useful tool book for myEnglish learning.

What did Mr Jones do before he moved here? -He_______ a city bus for over twenty-five years

My sister bought me a new camera. I don’t know _____________. Can you help me