17.　 Notes on how to use this dictionary can be found at the ___________(开始) of it

16.　 I can say nothing because the matter is still under _________________(讨论)

15.　 At first nobody noticed the child’s ____________(失踪)

14.　 Books give me knowledge and make me __________(感觉) happy

13.　 Many students like to take part in outdoor ___________(活动)

12.　 When can they finish _______________(装饰)the Christmas tree ?

11.　 Don’t ________(晒干)the silk in the sun

10.　 that computer __________( 自己，本身 ) can tell us whether it is in good condition.

9.　　　 Which do you think is the __________( 令人愉快的 ) of the two ,my boy ?

8.　　　 Not everyone enjoys taking ______(照片) during the trip.