英语完形填空water shortage may be the most serious (p ) in the wor

英语完形填空
water shortage may be the most serious (p ) in the world.is this (s ) to you?you may think that nearly 70% of the (e ) is covered with water.yes,it is (t ).but about 97% of it is sea water ahd it can't be drunk or used.people can only drink and use the only 3%.the water (c )only from rivers,lakes and underground.and water cannot even use all of that,because iceberg(t ) up some it.even (w ),some of the water has been polluted.
of couse,this little water is still (e ) for us if no more water is wanted and some of it can be (t ) back to reuse.but today more and more water is (n ).for more and more people,more and more factories.we must take steps to do with this problem.one of the first steps is to develop ways of reusing water.(a )way is to use sea water (b ) moving the salt out and this has begun in many countries.but it (c ) to much.how serious the water problem is!
(m ) in the end of next century,there will be drinking water only.
第9个好像是take吧