Steps must be taken ______this kind of disaster will never happen again.
#33840
A
because
B
even if
C
as
D
so that
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_____ she is the only daughter of the boss, she started from the lowest position as a common employee.
#32759
A
Unless
B
While
C
Since
D
As
The researchers found clear and convincing evidence _________ happiness is the key when it comes to better health and longer lives.
#30504
A
where
B
whether
C
how
D
that
The road is covered with ice. I can’t understand they insist on going by bike.
#34239
A
why
B
when
C
how
D
whether
hard she tried, she couldn't control her feelings when she was told her baby had been found．
#30652
A
As
B
While
C
However
D
Although