which of theese sentences is a topic sentences (critical)
a. The invention of the clock 600 years ago was the first accurate measurement of time.
b. Hourglass contained sand that fell through one container to another
c. Long ago people used simple tools such as the hour glass.
d. Humans have used different objects to tell the time
option 5
Answers & Comments
Answer:
D) Humans have used different objects to tell the time
The rest of the choices are supporting details of choice D.