Cirele the correct answer. 1. i (have/ has/ am) a cold today. 2. she (is/ have/ has) very expensive clothes. 3. mark (has/ is/ have) a good job. 4. (i'm/ i have/ i) sorry. she isn't home now. 5. the food (isn't/ aren't/ hasn't) very good. 6. potatoes (are/ have/ has) very few calories in them. 7. mathematics (is/ are/has) very difficult for some people.