语法词汇练习 语法大全 语法详解 英语听力 
People cut down too many trees, _____ the greenhouse effect becomes more and more serious.
#56516
A
so
B
because
C
although
D
if
下一题
推荐题目
Do you know the young lady _____ your mother is talking?
#55573
A
who
B
whom
C
with whom
D
which
—We can’t be successful ________ we keep working hard.—I agree with you.      
#56381
A
if
B
unless
C
because
D
when
Peter will cook for his parents __ the International Day' of Families comes.
#57632
A
unless
B
when
C
until
D
though
       all of us enjoy playing computer games,         we can’t spend too much time on them.
#58565
A
Although, but
B
But, /
C
Although, /
D
But, although
         he is ill,          he goes to school
#56186
A
Although ; But
B
/ ; /
C
Although ; /
D
But ; Although