I shall never forget the days ______ I stayed in Africa, ________ has brought me a lot of advantages.
#69576
A
that; which
B
when; which
C
when; that
D
which; that
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_________， I have to put it away and focus my attention on study this week.
#67712
A
However the story is amusing
B
No matter amusing is the story
C
However amusing the story is
D
No matter how the story is amusing
_________, I always feel I want a few more days.
#69097
A
However long is a vacation
B
However long a vacation is
C
However is a vacation long
D
However a vacation is long
______ come into leaf or bloom is obviously a sign of spring.
#69125
A
Trees
B
The trees
C
That trees
D
What trees
Some researchers believe that there is no doubt___ a cure for AIDS will be found.
#74636
A
which
B
that
C
what
D
whether