When Steven suddenly remembered that he had left his mobile in the office, the train was already________.[ ]

I can’t find my cat, _______ a blue cat, ________ ears are small.

_____ carefully, Michael! There’s a school ahead.

I’m afraid I’ve failed the driving test.— ______. Maybe things are not so bad as you think.

Itbe difficult to get a train ticket during traditional Chinese Spring Festival this year because there are many ticket windows.