1.going --> go
2.that's [a] good idea
3.which --> where
4.territaries --> territories
5.mean --> meant
6.interested --> interesting
7.这里可能是没有at the
8....这句话本身很有问题,只能给个大概建议....it's always great fun getting to the beach.Then/and then,there's 【这个是比较明显的错,但是不知道是打错还是错在这里?】 not just swimming .We can...
9.playing --> play
10.have [a] small barbecue
11.ourself --> ourselves
12.going --> to go
13.pollution --> polluted
14.is --> are [其实还有应该是not all of [the] beaches]
15.of them [are] clean and safe 【我想clean and safe的游泳池不会只有一个吧.是的话就是is咯】
16.没有 a (dirty water 前面)
17.hralthy --> healthy
18.agree [with] me