Volume 2

Have to Per esprimere dovere si usa anche: have to + forma base del verbo principale forma affermativa I have to He/she has to go home. forma negativa I don t have to He/she doesn t have to go home. Do you have to Does he/she have to go home? Have to equivale a è necessario e indica forma interrogativa un obbligo spesso imposto da altri. Alla forma affermativa have to e must hanno lo stesso significato, cioè esprimono un obbligo. Alla forma interrogativa have to viene abitualmente utilizzato in sostituzione di must: Do you have to call Sally? No, I don t. Does Thomas have to get up early? Yes, he does. 10 Inserisci nelle frasi la forma affermativa di have to e i verbi dati, come nell esempio: Alfie has to study with me today. (to) study 1. We ..................................................................... some drinks for the party. (to) buy 2. Dylan ............................................. to the library in the afternoon. (to) go 3. We .................................................................... early on Mondays. (to) get up 4. Ella ............................................. at the sport centre at five. (to) be 5. I .................................................................... the English test today. (to) do 6. Motorcyclists always ..................................................................... helmets. (to) wear 7. Mum .................................................................. a cake for Tom s birthday. (to) make 8. You ...................................................................... your room every day. (to) tidy 11 Inserisci nelle frasi le forme interrogative o negative di have to, a seconda dei casi, come negli esempi: Do you have to work hard, Emily? You don t have to clean your room today. 1. It s a holiday. Dad ..................................................................... go to work today. 2. ............................... you .................................... help Mum with the housework? 3. Marta and Sam ............................................................ study Maths today. 4. .......................... we ........................................ wait for Jason here? 5. .......................... you ........................................... call Mary before lunch? 6. I ........................................................... decide immediately. 7. .................................... Charlie ......................................... finish this exercise? 8. We ......................................................................... wear a school uniform. 30 UNIT 3