— Why does the lake smell terrible?— Because large quantities of water ____.
#85686
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
推荐题目
Between the two buildings _____ a monument.
#86132
A
stand
B
stands
C
standing
D
isstanding
It is the most severe situation _______ Japanese _______.
#85716
A
that, has faced
B
where, has faced
C
that, have faced
D
where, have faced