【2014年浙江省丽水市中考】
用方框中所给单词的适当形式填空。每空限用一次，每空限填一词。

improve   own    please   relax   weak

Who is the _______ of the new sports car?
Just sit down and try to _______ for a while, Grace.
Linda’s health has _______ greatly since she started on this new diet.
Li Ming is _______ in English, so he needs to spend more time on it.
My parents told me Ms. Smith was really _______ with my work last term.