.--- Robert, you didn’t travel by train?--- I was going to, but then I decided to go by car______.

The plane got back to the airport and landed＿＿＿＿at last. 

The incomes of skilled workers went up. ____, unskilled workers saw their earnings fall.

I’m not feeling very well today, ______ I would do the work myself.

—You don’t see the professor from Singapore quite often, do you? —No, we only meet ______．