The income of skilled workers went up. ________, unskilled workers saw their earnings fall.

 You had better ________ some time every day for sports so that you can keep yourself energetic.(2012·福建)

I had just posted the letter when I remembered that I hadn’t _________ the cheque.

Would it be ________ for you to pick me up at four o’clock and take me to the airport?

 The couple ________their old house and sold it for a vast profit.