As soon as the principal ______ the news on the bulletin, the students began gathering in the school garden.

The children have been waiting for half an hour and they are getting________.

Now China is fighting against illegal cooking oil（地沟油）, a kind of waste oil _____can cause a lot of illness.

eally surprised that apoliceman in his car __________ have hit several common pedestrians, killingone and injuring three—-Yes, If one __________ askfor trouble, what can we say

_____ all your school things, Jane! I hate them here and there. —–OK, Mum.