It is not always easy for the public to see _______ benefit a new invention can be of to human life.
#68436
A
whose
B
what
C
which
D
that
推荐题目
He finally bought several books by Tom, _____ is one.
#74036
A
which of them
B
which of whose
C
of which this
D
any of them
Helen is much more kind to her youngest child than to the others,___________ of course, make the others unhappy.
#73376
A
who
B
which
C
she
D
that
The infrastructure of a country is makes everything run smoothly， including things like transport， irrigation， electricity， postal service， telephones and schools.
#69516
A
that
B
what
C
which
D
as
______your opinions are worth considering,the president finds it unwise to place too much importance on them.
#72291
A
As
B
Since
C
When
D
While