Most babies say a few simple words.
Baby talk at 12-18 months.
D. meeting one particular dog
A gerund phrase begins with a -ing word and then includes any modifiers and objects, so A, B and C are not the correct answers.
Answer:
C
Explanation:
friction is most generated through force ontop of foce on a dry solid an ice rink is slipery so not alot of friction a wet field of grass fun to slide on but still no friction a dry rubber track best bet
