We were delayed at the airport．Otherwise，we here by lunch．

It is hard to say what kind of person he is.Sometimes he is very friendly; at other times he ___ be very cold.

There were already five people in the taxi, but the driver managed to take me as well. –It ________ a comfortable journey.

The boss requested that he _____ there to work.

If you carry on working like this, you will _____ sooner or later.