16..—Mr Smith, may I ask for a few days off? I am worn out. --____. We are too busy.
---Shall we open the window to let some fresh air in? ---_________. I’m feeling a little cold.
–Thank you for picking me up from the supermarket! – _________.
_______ is no doubt that the world is being smaller, due to the technological advances made by the computer.
More than 100 students in that school_________ abroad for further study so far.
I have_______ my husband again and again not to smoke, but he won’t listen.