—Do you know the young man well?—Sure, we __________ friends since we met in Nanjing three years ago.

Tom ______ there for 10 months since he ______ back to his hometown.

A large number of students           planting trees now, the number of the students         2000.

There        a fashion show next week, isn’t there?

—I was at the cinema at nine o’clock yesterday evening. What about you?—I ________ TV at home.