句子写作：He is very busy preparing IELTS. He has no time to play.
He is very busy preparing IELTS; therefore , He has no time to play.
暂无解析
句子写作：My presentation seemed to go well.
How many parts does a science and technology paper consist of? What are they?
Whataretheparagraphqualities?
句子写作：”Happy Christmas “he said.