Let’s plan a surprise party for our class. What’s your idea—Why not ________ a short play

That dog ought to be destroyed ______it attacks any more children

The student’s mind is always _____ when he listens to his teacher. [ ]

My sister _________art when she grows up because she wants to be an artist .

It is difficult for a teacher to give attention to children in a large class．We should reform the situation in order to meet each child’s needs．