They were happy to see each other after a long time apart.（他们在分开很久后再次见面很开心。）

We were planning a surprise party for her birthday.（我们当时正在为她的生日策划一个惊喜派对。）

The children were playing in the park when it started to rain.（开始下雨的时候孩子们正在公园里玩耍。）

The flowers were blooming beautifully in the garden.（花园里的花儿正盛开得很美。）

My parents were watching TV when I got home last night.（昨晚我到家的时候我的父母正在看电视。）

The students were listening attentively to the teacher's lecture.（学生们正在专心听老师讲课。）

The birds were singing loudly in the trees this morning.（今天早上鸟儿在树上大声歌唱。）

We were all tired after a long day at work.（工作了一整天后我们都很累。）

They were discussing an important issue in the meeting room.（他们当时正在会议室讨论一个重要问题。）

The old houses were pulled down to make way for a new building.（那些老房子被拆除以便为一座新建筑腾出空间。）

The books were neatly arranged on the shelves.（书被整齐地摆放在书架上。）

The athletes were training hard for the upcoming competition.（运动员们正在为即将到来的比赛刻苦训练。）

The clouds were floating slowly across the sky.（云朵正慢慢地飘过天空。）

The cars were lined up in a long queue during the traffic jam.（交通堵塞时汽车排起了长队。）

The girls were chatting and laughing in the corner.（女孩们在角落里边聊天边笑。）

The leaves were falling from the trees in autumn.（秋天树叶从树上飘落。）

The workers were building a new bridge over the river.（工人们正在河上建造一座新桥。）

The toys were scattered all over the floor by the little boy.（小男孩把玩具扔得满地都是。）

The stars were shining brightly in the clear night sky.（在晴朗的夜空中星星闪烁着明亮的光。）

The people were celebrating the festival with great enthusiasm.（人们满怀热情地庆祝这个节日。

）