1．Solar panels can only ________(操作)in sunlight.
2．The meeting discussed the fair ________(分配)of income and wealth.
3．Students are encouraged to ________(参加)in the running of the college.
4．You can ________(调整)this desk to the height of any child.
5．Now I have the great ________(特权) of introducing our speaker from Japan.
6．Study harder from now on. ________(否则)，双色球开奖时间：you will fall behind.
7．As an interpreter, her sister did much ________(志愿的)work during the Asian Games.
8．If you are not satisfied with your ________(购买的东西)，we will give a full refund.
9．This ________(偏僻的)village is so out of the way that mail comes only once a week.
10．Jack and Kim celebrated their twentieth wedding __________ (周年纪念日)in January.