IV/ Put in the correct verb form: 1/ If I (be) _______ you, I (help) _______ her now. 2/ If she (be) _______ late, she will be punished. 3/ I could have understood him if he (speak) _______ more slowly. 4/ What (you/do) _______ if you (be) _______ a billionaire? 5/ You didn’t pay attention to the teacher’s explanation. If you (pay) _______ more attention, you (do) _______ the exam well. 6/ She’s waiting for her uncle to come back from Ho Chi Minh city. If her uncle (come) _______ home, she (have) _______ a lot of presents. 7/ Sang is a naughty boy and often makes fun ofhis classmates. If he (start) _______ a joke, someone (cry) _______ bitterly. 8/ Chung wanted to buy some presents for his younger sister but he couldn’t. If he (afford) _______ to buy, her younger sister (be) _______ happy to greet a new year. 9/ He is never willing to help poor people. If he (do) _______ something, the earth (stop) _______ moving. 10/ I didn’t know her mother was ill. If I (know) _______ that, I (come) _______ to visit her. Giúp mình với ạ