General English Level 1 GELEV1 Unit 05 Topic 04.doc  LANGUAGE FOCUS 04 Time phrases - for and since - task 1. Read the sentences below. 2. Choose the correct word for or since. 3. Write the correct word in the space. 1. Carmen was sick ____ three days with the flu. 2. Amy has been sick ______ this morning. 3. Julia has been sick ______ last night. 4. Carmen had an eye infection ______ two days. 5. Gary will be away from work _____ a few weeks. 6. Ellen has been sick _____ one day. 7. Ellen has been sick ______ yesterday.  LANGUAGE FOCUS 05 Can, should, must, have to Dr Smith, Roberta and Ellen say: Dr Smith: She must rest and drink a lot. Ellen: Can I have lemonade, Dr Smith? Dr Smith: Of course you can, Ellen. And you have to take these tablets. Roberta: How many should she take? And how often? Dr Smith: She should take one tablet three times a day. Must, can, have to and should are modal verbs. We use them with other verbs. Examples must can have to should take take take take must must = it is very important, it is necessary. Dr Smith: “She must rest.” Examples 1. To be a doctor, you must study very hard at university. 2. When you cross the road, you must look both ways first. 240 QUESTLANGUAGE