—Steve is good at writing short stories. — So he is. But he writes _______ than us. So he can’t get good grades in writing.
--- Could you tell me _____ ?--- Because she likes her students very much.
---_____you _____ out the problem, Sam?--- Not yet, but I’m going to.
--- Some of the plastic bags can’t ______ after June1.--- Yes, people will use environmental bags instead.
--- All the clerks went home _____ Mr. Wang. Why?--- Because he had to finish his work.
--- Can you_____ your little brother? I’m busy now.--- OK. I’ll do it right now.