These days we are helping the farmers work on the farm.
这些天我们在农场帮农民们干活。
He was taking a walk leisurely by the lake when he heard someone shouted for help.
他正在湖边散步，突然听到有人喊救命。
Another novel were written by him.
另一本小说是他写的。
Linda"s brother is watching TV in his bedroom now.
琳达的哥哥现在正在他的卧室里看电视。
What were you doing at nine last night?
昨天晚上九点你在干什么?
a meeting was held by him that evening.
那天晚上他举行了一次会议。
He was playing while I was studying.
我在学习的时候他在玩。
Look at the picture. The children are flying kites in the park.
看这幅图。那些孩子正在公园放风筝。
Some flowers were planted in the garden.
花园里种了一些花。
He fell asleep when he was reading.
他看书时睡着了。
We are making model planes these days.
这些天我们在做飞机模型。
my car was repaired by that handsome guy .
我的车被那个帅哥修理了。
When I got to the top of the mountain, the sun was shining.
当我到达山顶时，阳光灿烂。
Mr Cheng is visiting our village this month.
这个月程先生在我们村访问。
the door was painted yesterday.
这门是昨天漆的。
It was raining when they left the station.
他们离开车站时正在下雨。
Listen! Our English teacher is singing the popular English song.
听！我们英语老师正在唱那首流行的英文歌曲。
The report was finished by him.
报告由他完成。
My brother fell while he was riding his bicycle and hurt himself.
我弟弟在骑自行车时摔倒了，摔伤了自己。
he is reading a newspaper in the office.
他正在办公室看报。
过去进行时和一般过去时 两个句子语义的区别
后面那句是错的，while前后只能接进行时态，第二个是错的，i want to就行了。when后可以接短暂性动词
小学英语过去进行时和现在进行时句子练习
通俗地说过去进行时是表示过去某个时间段正在进行的动作，其组成结构形式是主语＋were（was）＋动词ing形式，第一、二及三人称复数用were，而第三人称单数用was；而现在进行时是表示现在正进行或发生的动作或事情，其组成结构形式是are（is）＋动词ing形式，第一、二及三人称复数用are，而第三人称单数用is！