1．开头常用句式
Our class planned to organize a voluntary activity on...
Last Tuesday，our class invited...to teach us how to...
I still remember my first trip to...as if it were yesterday.
2．主体常用句式
First of all，I was impressed by...
We didn't spend so much time in...as I had hoped.
Hardly had he heard someone calling for help when he jumped into the river without hesitation.
The two robbers are reported to have stopped a taxi and headed for the railway station.
I think，it is the driver who should be to blame.
