Chia đúng dạng từ trong ngoặc

1.hot weather ( not cause).......................chapped lips and skins.
2.I am very happy (read)..................... your email
3.I can't( wait) ________(read)________your next letter
4. your English lesson( start) _............at 7am?
5.i often see a lot of people( exercise)...................in the park