The warning we were given as children ________ an apple a day keeps the doctor away may，in fact，have a scientific explanation.
#67422
A
that
B
who
C
where
D
which
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For weeks, the street hasn’t been cleaned by the cleaners, _______makes it very dirty.
#72383
A
who
B
which
C
that
D
this
He is of confidence, , in my opinion, is most important in society.
#67316
A
how
B
that
C
what
D
which
Although many of the houses in the small town ______ still in need of repair, there _____ lots of improvement in their appearance.
#68888
A
are, has been
B
is, have been
C
is, are
D
are, was
Come and see me whenever ____ .
#68238
A
you are convenient
B
you will be convenient
C
it will be convenient for you
D
it is convenient to you
The data shows __________ successful people have in common is _______ they have perseverance.
#69333
A
that, that
B
what, that
C
what, what
D
all, because