根据所给中文写出单词的合适形式
小题1:I often have fish for dinner. It’s _______________(健康的).
小题2:It is __________ (寒冷的)in winter in China.
小题3:The streets aren’t __________ (繁忙的)on Saturday morning.
小题4:On ________(星期一),we have Science and PE lessons.
小题5:We must be the ___________(主人) of the time.