IV:>
1. watching ( enjoy Ving )
2. to go ( decide to V )
3. saying ( intend Ving )
4. to call ( need to V )
5. using ( avoid Ving )
6. to have ( plan to V )
7. working ( mind Ving )
8. to contact ( plan to V )
VII:>
a.
1. T
2. F (He emigrated to Canada, then moved to the USA.)
3. T
4. T
5. F (He had to work very hard on the experimentation.)
6. F (He was helped by Thomas Watson.)
b.
1.Harmonic telegraph is used to send multiple messages over a single wire.
2. ‘Phonautograph’ is used to draw the shape of the sound waves.
3.The first telephone communication was between Bell and Watson in 1876. Bell was at one end of the line and Watson was working in another room. The first transmitted words were, “Mr Watson, come here. I want to see you.”
(CHÚC EM HỌC TỐT <3)