ex1 :
1. my arent often ________________(go) to the countryside at weekends _____________(avoid)__________________(be) disturbed by the noise
2. remember __________(turn) off the lights before ________________(go) to bed ___________________(save) electricity
3. you need ______________(study) harder _________________(get) high marks
4. please remember ________________________(put) away all the CDs when you've finished _____________________(listen) to them
5. after having driven for an hour , we stopped ________________________(ask) the way and then we stopped ________________(drive) again _____________(have) lunch
6. he often ______________(get) up early _________________(catch) the first bus
7. i _______________________(go) to Binh Minh Booktore last night_____________(buy) some nglish books
8. eople can ____(use) music ________(communicate)