Go downstairs,        stand in line on the playground as soon as possible.
#56406
A
and
B
but
C
so
D
or
推荐题目
        Mr. Green is 70 years old ,          he looks young.
#56284
A
Although; /
B
Although; and
C
/ ; /
D
Although; but
It ______last week that the haze(雾霾) in Beijing caused many problems.
#56008
A
reports
B
reported
C
is reported
D
was reported
_______ he did well, he was never top of his class.
#55253
A
Although
B
But
C
Because
D
Since