I don’t know who invented ________ telephone. It’s really ________ most useful invention.
Reading is an experience quite different from watching TV; there are pictures ______ in your mind instead of before your eyes.
The picture ______ on the wall is painted by my grandfather.
Smoking pollutes air. You ______ smoke here.
Jane was dressed in red ______ Joe was dressed in blue.
---- Did you watch the football match yesterday? ---- Yes, I did. You know, my brother ______ in the match at that time.