—____when has the country been open to international trade?—1978,I suppose.
#79800
A
Since
B
In
C
From
D
After
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_____ maths is concerned, Tom is the best student in our class.
#32676
A
s long as
B
s well as
C
s soon as
D
s far as
I will keep on trying, ______ I might fail a thousand times.
#31698
A
while
B
as if
C
even if
D
otherwise
（2014年安徽省合肥市高三第三次教学质量检测）28. Let's take a bus or taxi to the park — ______ you'd prefer to walk.
#30027
A
since
B
in case
C
unless
D
now that
— How about camping this weekend , just for a change?— OK, __________ you want.
#31766
A
whichever
B
whatever.
C
whoever
D
however