How can you avoid being monotonous when giving a speech?
A. Vary tone and emphasis.
B. Make different facial expressions.
C. Make animated hand gestures.
D. Use visual aids.

Idon't know which one from these two forms is correct! "he believed that the technology of the future would allow robots to do the same tasks as a human." or "he believed that the technology of the future would have allowed robots to do the same tasks as a human. , it's ! i need your !