用括号内所给单词的适当形式填空。
(1) He practices _______ (speak) English every day.
(2) I felt _______ (excite) about the news.
(3) Who _______ (invent) basketball in 1891?
(4) He is going away for at _______ (little) a week.
(5) Doing morning exercises is a good way to keep _______ (health).