The best title for the passage is ______.
A.the Invention of the Umbrella
B.the History of umbrellas
C.umbrella-A symbol of Honor
D.who Used Umbrellas First
It was (him) who did all the work (on) the invention, but somebody (else) got (all the credit).
A.him
B.on
C.else
D.all the credit
A.He is remembered
B.To remember
C.While remembering
D.Though remembered
Professor Smith' s new invention has created a great ______ on the campus.
A.sensation
B.selection
C.imitation
D.irrigation
A.discovery
B.invention
C.nutrition
D.distribution
Before the invention of the Internet, our connections with people took place mainly
A.in person
B.by phone
C.by letter
D.by e-mail
The author thinks private ownership to be ______.
A.a necessary invention of mankind
B.an inherent right of a human being
C.a permanent arrangement for society
D.an explicit idea of some individuals
The new invention is to make our daily life easier, ______it more difficult.
A.not to make
B.not make
C.not making
D.do not make