improve   own    please   relax   weak

小题1:Who is the _______ of the new sports car?
小题2:Just sit down and try to _______ for a while, Grace.
小题3:Linda’s health has _______ greatly since she started on this new diet.
小题4:Li Ming is _______ in English, so he needs to spend more time on it.
小题5:My parents told me Ms. Smith was really _______ with my work last term.