Supply the correct word form

Hoàn thành EXERCISES :
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EXERCISES
I/SUPPLY THE CORRECT WORD FORM.
1. This old man is
2. Thomas Watson was bell’s
3. He was
4. Marconi was the
in one ear. (deafen)
,Wasn't he? (assist)
in demonstrating his invention. (success)
of radio. (invent)
5. The
of radio was made by Marconi. (invent)
6. The play was a
7. Alexander Graham Bell
8. Lan felt sad because she was
success. (commerce)
demonstrated his invention. (success)
in her job.( success)
of the tables for you? (arrange)
10. Alexander Graham Bell experimented with ways of transmitting
9. Can I leave the
o ver a
long distance. (speak)