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www.yyxzylearnenglish.net is a website______ is helpful to English learners.
#55175
A
what
B
that
C
where
D
who
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---Why are you busy these days?--         I am writing a book.
#56484
A
since
B
as
C
for
D
because
— 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
I don’t like science _______ it’s difficult.
#55838
A
but
B
so
C
because
D
and
—We can’t be successful ________ we keep working hard.—I agree with you.      
#56381
A
if
B
unless
C
because
D
when
       Lily             Sam likes popular songs, so they went to Zhou Jielun’s concert together last night.
#55420
A
Both, and
B
Either, or
C
Not only, but also
D
Neither, nor