— I called you yesterday evening, but nobody answered the phone.— Oh, I           a walk with my parents at that time.
#39381
A
took
B
was taking
C
am taking
D
take
推荐题目
The world _____ . Things never stay the same.
#38620
A
changes
B
is changing
C
was changing
D
will change
-Why does the river smell terrible? -Because the water_______.
#42170
A
was polluted
B
has been polluted
C
will be polluted
D
has polluted