酷暑难耐的盛夏时节,经常有人把室内空调温度调得很低,不料随后却出现头晕、头痛等不适症状。医学专家认为,将空调设置到26℃不仅是一个令人舒服且不易患病的最佳温度,也有利于节能减排,建设生态文明。提倡开空调不低于26度属于
—Your pencil case is very nice. —________.
—What’s this ________? —It’s a book.
Let’s _____ basketball.
Please _____ these things to your sister, she needs them.
Jim’s brother_________ five basketballs.