It was not until the beginning of the twentieth century________to explore space.
#93086
A
did man begin
B
when man began
C
that man began
D
then man began
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___ is well known is that Africa had contacts with India and the Red Sea civilizations from the earliest times．
#93671
A
As
B
It
C
What
D
That
___ is believed ___ more and more people would fly to the moon in the future.
#94814
A
That, like
B
This, as
C
It, that
D
Man, when
It will be a long time Mr Black back from abroad.
#94801
A
before;comes
B
since;has come
C
before;will come
D
after;will come
As we know, knowledge is power and the more you learn, .
#93857
A
the more for life you are equipped
B
the more life you are equipped for
C
the more equipped for life you are
D
you are equipped the more for life
It was from May 1 to October 31,2010____________the World Expo 2010 Shanghai will be held, _____________is a great event for the Chinese people.
#94632
A
when; that
B
that; when
C
which; when
D
that; which