--- This history book is of great value. --- Exactly. ____________ can be enjoyed from it ____________ you have a deep understanding of it, however. 
#55378
A
Nothing; unless
B
Few; till
C
Something; until
D
Little; since
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     he studied hard every day,      he didn’t pass the exam.
#58253
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Because, so
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Although, /
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_______ Mr. Smith is not rich, ________he always gives money to the poor.
#56537
A
Although ; /
B
Although ; but
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Because; /
They can’t go out        the strong wind.
#55224
A
because
B
since
C
as
D
because of