_________ 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
Do you know ______ your parents are pleased ______ you’ve done?
#16193
A
why; for what
B
how; with what
C
that; with which
D
how; for what
More than 100 students have entered for the competition and________ gains the most points will be the winner.
#15762
A
anyone
B
the one
C
that
D
whoever
—What are you two whispering about over there?—Oh, ______. Just small talk.
#14852
A
no
B
nobody
C
none
D
nothing
Be quiet！Our teacher has _________ to tell us.
#15599
A
important anything
B
something important
C
important something
D
anything important