A healthy heart is very important for giving life to the full, at_________ age you are or whether you are a male or female.
#33254
A
what
B
which
C
whatever
D
whichever
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_______ there are many different types of food, some animals spend their lives eating only one type.
#30197
A
Since
B
Unless
C
Once
D
While
It’s much easier to make friends____ you have similar interests.
#30948
A
unless
B
when
C
even though
D
so that
．______ the satellite launch drawing near, the research workers put their hearts to the test and always stayed up late.
#33637
A
As
B
Because
C
With
D
While
_________ the internet is _________, I do not think it is a good idea to spend too much time on it.
#34019
A
When ; helpful
B
As ; great help
C
While ; of great help
D
Now ; of no help
Is this the reason____ at the meeting for his carelessness in his work?
#32522
A
he explained
B
what he explained
C
how he explained
D
why he explained