There is little water in the bottle, ______?
—________ does she weigh? —Her ________ is 50kg.
We should encourage our students ________ hard instead of ________ too much time playing games.
—What were you and your cousin doing at this time yesterday?—He was reading a magazine ________ I was writing an e-mail.
Mr. Green told us _____ turn the lights off when we leave the classroom.
This story is ______ easier and ______ interesting to read than that one.