补全对话,每空填一词.
T：Mum ,why are you in a (1)
M：The (2) truck is outside.I must go downstairs to (3) the rubbish in it
now.(a moment later ,Mum goes upstairs again.)
T：Mum ,how do you know the truck is (4) .
M：Can’t you hear the music It tells you the truck is (5) .
T：Oh ,it is interesting and also it is good .It is a (6) way to keep our environment
clean ,especially in summer.
M：Yes ,and everybody must do something to (7) .For example ,you must have the habbit to throw the rubbish (8) time .And don’t throw them (9) as you like.
T：I can understand now .Next time let me throw the rubbish.Also I’d like to tell others
(10) it .Everyone has this duty to do like that.