还是独立主格题...
The pupils who are playing on the playground are my classmates.
At the meeting that was held last week,many problems came up.
The explanation which you gave us is not satisfactory.
I found that my hometown had changed a lot.
I noticed the children were playing hide-and-seek.
she couldn’t help smiling when she thought of the joke.
Because Tom was ill,he didn’t go to see the film.