PAGE:18 number 1
1.checked
2. went
3. was eatnig
4. arrived
5.Did you get
6. received
7. had had
8.didn't want
9. used to love
10. used to be

PAGE:18 number 2
1.a.bald
b. recent
c. investigate
2. a. calm
b. adult
c. worse
3. adult, adolescent, middle-aged, elderly.
4. blad,red,brown.
5. worse, annoyed.
6. investigation, celebration.
7.originally, calmly