用所给单词的适当形式填空

①The best way ____ (learn) English is using it.

②Lots of ____ (tour) from all over the world come and visit the Great Wall.

③Everyone here ____ (know) the way to the zoo.

④The ____ (chairman) of the company presented the annual report.

⑤There is a small ____ (swim) pool in Mrs Read's garden.