Lesson XIII: Vocabulary in Context

3. HAVE + TO-AF HAVE + TO-AF indicates necessity . Situation: Everyone is looking at Mr. Hunter’s color slides. Mr. Black: Where did you take this picture? Mr. Hunter: At the hotel in the Yosemite National Park. Mr. Black: Was it necessary to reserve your hotel room? Mr. Hunter: Yes, we HAD TO MAKE our reservations two months in advance. Exercise 3.1. Practice HAVE + TO-AF in the Past Answer with NO, HE HAD … . For example: Couldn't Dave go to the movies last night? - study - NO, HE HAD TO STUDY . Couldn't he come to the picnic today? - go to Detroit- NO, HE HAD TO GO TO DETROIT . 1. Couldn't he join us at the party? -do his assignment- 2. Couldn't he stay home? -take Marcia to the movies- 3. Couldn't he wait for his friend? -see his teacher- 4. Couldn't he take some pictures? -buy new batteries- 5. Couldn't he take a trip? -work- 6. Couldn't he sit down? -stand up- 7. Couldn't he go to the concert? -study for the examination- 4. BE + ABLE + TO-AF BE + ABLE + TO-AF expresses ability . Mr. Hunter: Here are some pictures of San Francisco. Mr. Black: Where’s the Golden Gate Bridge? Mr. Hunter: We should BE ABLE TO SEE it in this picture, but we can’t. It’s behind those buildings. Exercise 4.1. Practice BE + ABLE + TO-AF This is a substitution exercise. For example: I wasn’t able to call up Mary . pick up my laundry I WASN'T ABLE TO PICK UP MY LAUNDRY . 1. look up the new words 5. do my homework 2. play tennis 6. come to the party 3. pick up my girl/boy friend 7. visit my friend 4. watch television 8. go to the play