How kind you are! You always do what you can_________me.

The factory ______ its waste into the river, but now it deals with the waste in a new way.

Please do not feed the fish; they ________ die if they eat too much.

--I went to work on foot yesterday, though it was raining cats and dogs.---You __________ a bus. You were likely to get a cold.

According to the school rules, if a student _________ happen to damage something by accident,he/she should report it to a teacher or the office immediately.