you may have, you should gather your courage to face the challenge.
#68062
A
However a serious problem
B
What a serious problem
C
However serious a problem
D
What serious a problem
推荐题目
When we start gazing into the night sky with a telescope, soon we’ll be astonished by the realization _______ we and our world are part of this giant system.
#69052
A
which
B
whether
C
that
D
as
___ nearly all behavior is learned behavior is a basic assumption of social scientists.
#72114
A
/
B
That
C
It is acceptable
D
When
----It’s thirty years since we last met． ----But I still remember the story, believe it or not, _____ we got lost on a rainy night．
#68019
A
which
B
that
C
what
D
when
It is well known to us all ____ China sent up a manned spaceship to outer space successfully last year.
#73136
A
that
B
what
C
which
D
when