Please check my answers thank you.

Question

1. Identify which change is needed, if any, to make this sentence correct:
Some people prefer stationery bikes to treadmills.

A. no change
B. stationary X

2. Identify which change is needed, if any, to make this sentence correct:
Many of the fashions of the roaring twenties have come back into vogue.

A. No change X
B. Roaring twenties
C. roaring Twenties
D. Roaring Twenties

3. Identify which change is needed, if any, to make this sentence correct:
Studies show that children whose parents read to them do better in school.

A. who is
B. who's
C. who'se
D.no change X

4. Identify which change is needed, if any, to make this sentence correct:
Many soft drinks are caffienated.

A. no change
B. caffienated X

5. Identify which change is needed, if any, to make this sentence correct:
The Sahara Desert is the world's largest subtropical desert.

A. no change X
B. Dessert; dessert

6. Identify which change is needed, if any, to make this sentence correct:
Oddly, the chief-of-staffs positions were given to people with little experience.

A. chiefs-of-staff
B. chief-of-staff X
C. chief-of-staff's
D. no change

Answer 1

I agree with you on all except #4 — unless B is supposed to be spelled ‘caffeinated.’

Answer 2

I disagree with #2. Periods or eras of time should be capitalized, so it should be the Roaring Twenties.

Answer 3

Ian is correct.

Answer 4

# number 6 answer should be Chiefs-of-staff.