Time duration exercises: Subject + v + obj + v + 了 + duration of time + 了
例句：她睡觉睡了两天了。She has been sleeping for two days.
- He has been showering in his dorm for 2 hours.
- Last night he only slept for 4 hours.
- He studied Chinese in Beijing for one semester.
- Before going to bed last night, he watched TV for 3 hours.
- My younger brother has worked in that company for 7 years.
Time elapse exercises: Subject + time elapse + 没 + v + 了
例句：我两天没睡觉了。I have not had any sleep for two days.
6. I have not had coffee for five days.
7. It has been two weeks since I attended Chinese class last.
8. She has not spoken French for three years.
9. It has been already a month since I called my parents.
10. Mom has not had any liquor for three months.
As soon as
“一 . . . action I 就 . . . action II” is used to expresses causality of two actions happening one after the other. For example: 妈妈一回家就做饭给我们吃。(As soon as mom returns home, she cooks for us.) Join fragments by number;
1.爸爸妈妈一听说哥哥已经到了北京， ( ) 就知道一会儿会下雨
2.请你一到中国 ( ) 就觉得肚子不舒服
3.弟弟一想起昨天他打了妹妹 ( ) 就马上走开，不想跟我说话
4.我的男朋友一吃海鲜(seafood) ( ) 就知道他的病人快要死(sǐ die)了
5.我的前女友一看见我 ( ) 就开车去飞机场接他
6.妈妈今天很忙，累得晚上一回家 ( ) 就知道他们来是要离婚(lí hūn)
7.李医生一看到那位老人 ( ) 就觉得自己做错了，对不起她
8.张律师一看见王先生王太太来 ( ) 就都回家或者跟朋友去玩
9.春假一到，王老师的学生 ( ) 就想上床睡觉
10.他一看到天上有很多云 ( ) 就打电话告诉我那有没有WIFI
Past
- 昨天晚上我去看电影了。
- 今天我们都没吃早饭。
Present
- 他已经看过那本书了。
- 他们还没去过中国呢。
Future
- 爸爸妈妈明天要来学校看我。
- 我觉得明天会下雨。