1) They______ friends.  a) is b) am c) are d) isn't 2) Mary ______ sick.  a) am b) isn't c) is d) are  3) Peter ____ at school.  a) are b) am c) is d) aren't 4) He ________ sad.  a) isn't b) are c) aren't d) is 5) He ______ happy. a) is b) are c) am d) isn't 6) I______ happy. a) aren't b) isn't c) am not  d) are 7) The dog ________ brown.  a) aren't b) is c) are d) isn't 8) The car ______ old. a) aren't b) is c) are d) am 9) Carol_______ beautiful.   a) are  b) aren't  c) is d) am 10) John _______ a good student.  a) is  b) are c) am not d) is 11) They _____ at the supermarket. a) isn't b) is c) are d) am. 12) Susan ______ at the hospital. a) is b) isn't  c) aren't  d) are

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