___       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
推荐题目
The Bunsen Burner is so named because it is thought ___________ by Robert Bunsen.
#94981
A
to be invented
B
having been invented
C
invented
D
to have been invented
Seeing the car trapped in the snow drift, the driver didn’t know ______ it.
#94921
A
how to do
B
what to do
C
how to deal with
D
how to do with
What would have happened __________ , as far as the river bank?
#93733
A
Bob had walked farther
B
if Bob should walk farther
C
had Bob walked farther
D
if Bob walked farther
These houses are sold at such a low price _______ people expected.
#94666
A
like  
B
as 
C
that  
D
which