It was about 600 years ago _______ the first clock with a face and an hour hand was made.
#85210
A
that
B
until
C
before
D
when
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It was in the school ____ he had studied ____ he began the important experiment.
#85485
A
that; where
B
in which; which
C
where; that
D
where; in which
Was it not until you began to work ___ how much time you had wasted?
#85385
A
did you realize
B
that you realized
C
did you not realize
D
that you didn’t realize
Why!I have nothing to confess(坦白) .  ______ you want me to say?
#84948
A
What is it that
B
What it is that
C
How is it that
D
How it is that