giúp em với ạ .em cảm ơn nhiều ạ 1. she doesn't do her work, i will send her home unless...... 2.if she hadn't gone to shool yesterday , she would have missed the test unless...... 3.unless they sent him to the doctor,he wouid die if...... 4.he doesn't save enough money to buy a car,but he'd like to if....... 5. we came back in time ,so we joined with them if...... 6. she didn't go to bed early, so she felt tired if...... 7. lan is short, so she can't wear her sister's clothes if lan....... 8. he couldn't get rid of his cough because he smoked heavily if he...... 9. he didn't pass the driving test because he missed so many so many lessons if he..... 10. she doesn't remember your advice, so she is ill if...... 11. it runs badly because don't change the oil if..... 12. if they hadn't found out the remedy, the patient would have died unless....... 13. the accident happened because the train driver ignored a warning light if...... 14. lan feels sick because she eats four cream cakes if...... 15. they don't go to the beach because weather is bad if......