33.　 The book itself is very good except for its c_______.

32.　 Look! A number of people are c______ round the truck. What is h_______?

31.　 You can see many stars on a c______ night.

30.　 The teacher develops his students’ k_______ by asking them a lot of questions.

29.　 It’s no use crying over the dead cows, Betty. You’d better find out who k______ them.

28.　 He can’t say one more f______ word except “apple” and “orange”.

27.　 -------It opens at 9:00 on w______ and at 9:30 on Saturday and Sunday.

26.　 ------When does the library open?

25.　 Chinese has the largest number of speakers, but it is s_______ in few countries.

24.　 Let’s learn from each other and make progress t_________.