David doesn’t give up _______ he has failed in the experiment four times.
#57463
A
if
B
while
C
though
D
since
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— It’s one o’clock now. I must go. — It’s raining outside. Don’t leave it stops.
#58482
A
when
B
since
C
while
D
until
—How can I learn English well?—You will learn it well ________ you practice speaking it often.
#56660
A
unless
B
as for
C
as soon as
D
as long as
--- Would you come back to have dinner with us this evening? --- I’d love to, ______ I have an important meeting .
#55470
A
and
B
or
C
so
D
but
– I have no money. Do you have any? – No, I don’t have any money, ________.
#57932
A
too
B
either
C
also
D
but