There is still much to discuss. We shall, ____________, return to this item at our next meeting.
With the word “ PM2.5” ________ appearing in media reports, people pay greater attention to it and seek health tips for smoggy days.
He is talking so much about America as if he _____ there.
---How about going for a walk? --- ________ great. Let’s get going.
The teacher demanded that the exam _____ before eleven.
He had a strange hairstyle and he instantly became the ________ of attention the moment he stepped into the classroom.