23.　 We have been here for two weeks. (同义句)

We have been here _______ _______ _________ ________.

22.　 Did she set a new world record in the last Olympics? (改为被动)

_________________________________________________ ?

21.　 It will take them forty minutes to finish reading. (划线提问)

________________________________________________ ?

20.　 He is the tallest student in his class. (同义句)

He is _______ _______ ________ ________ student in his class.

19.　 The bridge is over three kilometers long. (同义句)

The bridge is _____ ________ three kilometers long.

18.　 Why not ask him about the matter? (同义句)

_______ ________ _________ ask him about the matter?

17.　 Our school is four times as big as yours. (同义句)

Our school is _______ _______ than yours.

16.　 That’s such a thick book. (同义句)

The book is _______ ________.

15.　 You can’t lift the heavy box without his help, _______ ________? (反意问句)

14.　 Where is the highest mountain located? Do you think? (合并)

_______ do you think the highest mountain _______ ________ ?