Sandy’s colour ________ be blue because she likes to be the leader, so it _______ be red.

Although he is very old, ______ he works very hard.

More than 20 people ________ in traffic accidents ________ last May.

(2013·兰州市高三二模)Look at this year’s sales figures ________ last year’s; they’re much better

To test eggs, _____ them in a bowl of water: if they float they’re bad, if they sink they’re good.