If we ______ take environmental problems seriously, the earth _______ worse and worse.
— Does your sister have a new watch? — . But she has a new clock.
— Why does your teacher play basketball? — Because he does not have much free time to play it.
— Shall we go and hello to the old man? — Good idea! Let’s go.
— Is your cousin good at drawing? — Yes. He also well in singing.
— do you have Art class? — About once a week.