D.Listen to the dialogue and complete the following sentences（听对话，用听到的单词完成下列句子，每空格限填一词）
1.It's been about__________since Alex's mum left home．
2.Although nursing is not easy．Alex's mum likes to__________patients．
3.Alex's mum needs to make sure her patients take medicine__________．
4.Nurses sometimes talk with patients and their family members to make them__________．
5.Alex is__________his mum because she helps save lives．
C.Listen to the passage and whether the following statements are true or false（判断下列句子是否符合你听到的短文内容，符合的用“T“表示，不符合的用“F”表示）
1.Animals like snakes（蛇）usually get more attention because they look dangerous.
2.Lucy wants people to know that less cute animals are important, too.
3.Lucy is especially interested in snakes because she wants to save them.
4.Lucy tells stories on TV about less cut animals.
5.Many people like watching Lucy's fun videos online.
6.The passage is mainly about how people study less cute animals.
A.Mum and son． B.Teacher and student． C.Doctor and patient． D.Policewoman and driver．
A.Drinks for dinner． B.Place for dinner． C.Time for dinner． D.Food for dinner．
A.At Gate 2． B.At Gate 5． C.At Gate 15． D.At Gate 30．
A.To live near his office． B.To have a new job． C.To live close to friends． D.To have a quiet life．
