A. He didn’t make use of mathematics to develop his inventions.
B. He just knew how to read and write.
C. He was born in a rich family.
D. His father was a blacksmith.
A. chemist
B. bottle washer
C. scientist
D. professor
A. his invention of dynamo
B. his discovery of the effects of electricity on chemical substances
C. his invention of electric motor in 1821
D. his discovery of magnetism
A. Humphry Davy
B. his father
C. Queen Victoria
D. his friend
A. Although
B. living conditions
C. feel
D. happy
A. A
B. for
C. children
D. has built
A. The
B. who
C. is
D. out of order
A. would
B. bought
C. if
D. some
A. had finished
B. his
C. homework
D. had gone
A. sport
B. before
C. more
D. son
A. put
B. pull
C. sun
D. full
A. school
B. chemistry
C. Christmas
D. children
A. afternoon
B. floor
C. door
D. more
A. newspaper
B. today
C. happen
D. radio
A. inspiration
B. interview
C. economic
D. preparation
A. headphone
B. support
C. inspire
D. collapse
A. fabric
B. patent
C. inspire
D. velcro
A. develop
B. principle
C. submarine
D. generous
A. patent
B. collapse
C. fabric
D. velcro
A. go
B. going
C. went
D. goes
A. why
B. when
C. which
D. where
A. works
B. to work
C. worked
D. working
A. Because
B. In spite of
C. Because of
D. Although
A. is going to fall
B. am going to fall
C. are going to fall
D. were going to fall
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