Sagot :
Answer:
21. b. children
22. a. cactus
23. B. under the surface of the earth
24. a. means of travel from one place to another
25. c. the state of becoming inactive
Explanation:
21. the noun or subject "children" is plural , the verb will become singular which is play
22. the verb grow is singular, cacti is the plural noun yet cactus is commonly use.
23. from the prefix "sub"
24. from the root word transport
25. from the prefix "de" and "in" means not