Some complain that visitors are too much stress on the environment．（cause）
You can enjoy water sports，or lie on the beach．（simple）
The faces were a sight，covered with dust．（boy）
为了在晚会上不被误认为是他的孪生弟弟，凯文戴了一副眼镜
In order not to his twin brother，Kevin at the party．
如果你处于危险之中，你可以向警察寻求帮助
If you are ，you may help from policemen．