When you ______with the dictionary, don’t forget to put it back on my desk, will you?
20. —Why was __ you lost all your keys? —It was because of my carelessness.
19. To work at home has been made _____ with the development of the Internet.
18. ------- Could you please tell me more about the city? ------- Sorry, I’m a newcomer. I know nothing else ______ you know now.
17. ________ is expected, according to the on-line survey, is that prices of houses will not go up any longer.
16. The story that follows _____ two famous characters of the Rocky Mountain gold rush days.