The problem is difficult few students can work it out.
The book isn’t _____________________. We don’t like it.
The Science Museum interests me a lot. I enjoy __________ there.
Zhao Peng likes to eat chocolates but he ________eats them before going to bed, because he thinks it’s not good for his teeth.
---Let’s do something at the party . What about _________ ?--- No , I’d like _______
_______Project Hope, many children have better lives.