-- I called you this morning, but nobody answered.-- Sorry. I ________ the flowers in the garden.
#39742
A
am watering
B
was watering
C
water
D
watered
推荐题目
-Why does the river smell terrible? -Because the water_______.
#42170
A
was polluted
B
has been polluted
C
will be polluted
D
has polluted
—What were you doing at this time yesterday?—We _______ in the classroom. 
#39914
A
read
B
were reading
C
are reading
D
was reading