_________ it takes many years to gain the skills of an expert.
#15083
A
It is well known to us that
B
As is known to us that
C
As we know that
D
That is well known to us
推荐题目
My father admitted that when comes to pop music, he had little knowledge of it.
#15942
A
he
B
that
C
this
D
it
Shanghai is larger than _____in China.
#16698
A
all cities
B
any city
C
any other city
D
any other cities
Various optional courses being available, we can choose ________ based on our own interest.
#15066
A
either
B
each
C
one
D
it
It was hard for him to learn English in a family, in which _____ of the parents spoke the language.
#17095
A
none
B
neither
C
both
D
each