MODALS (Couldn't/Might Not)

1. I'm sorry I _could not____ come yesterday. a. could not b. might not 2. I'm sorry, but I _might not____ be able to come today. a. could not b. might not 3. I'm sure that _could not____ have been him. a. could not b. might not 4. I'm not sure, but that __might not___ have been him. a. could not b. might not 5. Let's check the news. The airport _might not____ be open. a. could not b. might not 6. I _could not____ tell him the truth about Holly, but I should have. a. could not b. might not 7. Jeanette had made other plans, so she __could not___ come with us to the museum yesterday. a. could not b. might not 8. Jeanette has made other plans, so she _might not____ come with us to the museum today. a. could not b. might not 9. He __could not___ have possibly won that contest! He was so stupid! a. could not b. might not 10. She _might not____ have told him. That's why he didn't mention anything to me. a. could not b. might not

A fantastic Thursday evening to you Sir [이름]! I really admire you for being a diligent student of mine. You always do your homework everyday and you perform well in class! I always look forward to our class. ^^ It is because you actively participate in class. ^^ I hope that you will always have the enthusiasm of learning English. Don\'t give up until you reach your goal. ^^ Think positive! See you! Enjoy the rest of the day! Teacher Nina   1. I\'m sorry I _could not____ come yesterday. a. could notb. might not>> CORRECT! 2. I\'m sorry, but I _might not____ be able to come today.a. could notb. might not>> CORRECT! 3. I\'m sure that _could not____ have been him. a. could notb. might not>> might not4. I\'m not sure, but that __might not___ have been him.a. could notb. might not>> could not 5. Let\'s check the news. The airport _might not____ be open. a. could notb. might not>> CORRECT! 6. I _could not____ tell him the truth about Holly, but I should have. a. could notb. might not >> CORRECT! 7. Jeanette had made other plans, so she __could not___ come with us to the museum yesterday. a. could notb. might not>> CORRECT! 8. Jeanette has made other plans, so she _might not____ come with us to the museum today. a. could notb. might not>> CORRECT! 9. He __could not___ have possibly won that contest! He was so stupid! a. could notb. might not>> CORRECT! 10. She _might not____ have told him. That\'s why he didn\'t mention anything to me. a. could notb. might not >> CORRECT!