The children ＿＿＿＿＿＿ very quiet； I wonder what they ＿＿＿＿up to.
#104649
A
were； are being
B
are being； are
C
are； do
D
are being； do
推荐题目
The gasoline _______. Let’s fill the car up at the next gas station.
#101070
A
is running out
B
has run out
C
is being run out
D
has been run out
（湖南省怀化市2014年高三第二次模拟考试）24. My mother _____ all the cleaning for my family, but recently she has been too busy teaching to do it.
#99105
A
will do
B
is doing
C
does
D
had done
--Look! Someone ________ the floor.--Well, it wasn’t me. I went shopping just now.
#100635
A
had swept
B
has swept
C
was sweeping
D
is sweeping
As he _____ in the river for five hours, the thief looked very pale and hopeless.
#104953
A
trapped
B
has been trapped
C
trapping
D
had been trapped