PREPOSITION 
I/Fill in the blank with the appropriate PREPOSITION
1/ that man was fined....... dynamite fishing.
2/ the government should encourage city-dwellers to use public buses instead .... motorbikes.
3/ that seaside is always full...trash.
4/ what will happen ...the bag filled....valuable things if you don't keep an eye on it?
5/ my school yard is never littered.... rubbish. the students are aware...pollution effects on their health.therefore, some of them want to dedicate their lives....protecting the environment.
6/ people are warned to stop using dynamite....catching fish.
7/ summer is on its way . when are you doing .... vacation ... your family?
8/ I look forward ... hearing from you. i haven't seen you ... ages.
9/ ... autumn , the yard in front ... my house is covered.... leaves.
10/the substance is mixed ... water and sprayed... plants to kill garden pets and ants.
11/ forests provide timber , one of the most valuable resources, .... us.
12/ I am conscious... the reasons ... the destruction of the forest.
13/ we can find the garbage dump in our town... this map.
14/ we are not doing enough to save the environment ... pollution.
15/ I'm sorry I can't go ... working like this.- I've had enough.
16/ the trees are cut... because their wood is wanted.
17/ the health service has to cope.... an outbreak of respiratory infections.
18/ his parents worry that he can get further into drugs and end .... in prison.
19/ if you keep... stopping.... refreshments on the way, you will be late...class.
20/ my right leg hurts because i fell... a rock yesterday afternoon while i was playing basketball.
21/ the teacher divided the class... four groups.
22/ he provided us... a lot of useful information.
23/ the teacher gave ... the exam papers.
24/ i was disappointed... the grade i received on my last exam.
25/ the ground is covered....trash. you should clear .... all the trash on the ground before leaving.
26/ after several hours of discussion, the council finally agreed... a plan.
27/ my sister kept ...asking me questions after question.
28/ the garbage has got full... junk again .
29/ we are all responsible .... keeping the environment clean and clear.
30/ don't throw trash.... the water because polluted water can directly do harm....people'shealth.