my pen . your pen.
The mountain was ______ steep ______ few people in our city reached the top.
The war was over about three months ago, ______ the American soldiers in Iraq are still having a lot of trouble to deal with.
—Which sweater do you prefer, the yellow one or the pink one?—______. I like a light blue one.
Jim has made many friends since he ______ to China.
Which is ______ to learn, fishing or swimming?