#3 problem, doctor, feel ill, sore throat, mouth, headache, temperature, got a cold, in bed, take medicine, thank you
#4 have - had - had, hear-heared-heared, become-became-become, drink-drank-drunk, eat-ate-eatten, give-gave-given, do-did-done, make-made-made, go-went-gone, be-was/were-been
#5 1. meets 2.is learning. 3. did 4. is having 5. do 6. is 7. swimming 8. arent 9. did 10. did