arrange the words to make a meaningful sentence
1. about/ more/ bins/ school/ our/ garbage/ how/ putting/ around
2. / biggest/ facing/ nowadays/ problems/ is/ of/ the/ people/ serious/ most/ pollution/
3. waste/ kill/ the/ marine/ cause/ pollution/ life / materials/ animals/ and/ can
IV. Rewrite the sentence so that it has a similar meaning to the first sentence
1. this is a dirty place so we are here to clean up it -> this place is so
2. tom didn't go to school yesterday because of his illness -> as
3. you have to study harder or you won't pass the exam -> if you want
4. she made her parents happy because she won the first prize -> her parents were