To be safe,students should (避免) going out alone at night.
Today is Mary's (十二岁)birthday.We will go to her birthday party.
Jack has brown hair and he doesn't wear (眼镜).
Mother thinks it is a (浪费)of time to play computer games.
Mark does his homework (认真地) every day.
Parents always try to (提供) a comfortable environment for their children.