________ on ten years of observation and study, Professor Wang announced that everyone dreams every night,whether they realize it or not.
You simply can’t imagine full use we of our time to study.
It remains a(n) question whether middle school children should be allowed to use mobile phones at school.
--- I’m as busy as a bee these days.--- To be honest, I do not your job.
After days of discussion, his plan to be the best one.
Knowledge through children’s own practice is lasting and will benefit them all their lives.