—Why does the lake smell terrible? —Because large quantities of water _____.
#93664
A
have polluted.
B
is being polluted.
C
has been polluted.
D
have been polluted.
推荐题目
Would you be ___ to show me the way to the Summer Palace?
#98671
A
so good as
B
good enough
C
good enough
D
A and C
A cook will be immediately fired if he is found _______ in the kitchen.
#98618
A
smoke
B
smoking
C
to smoke
D
smoked
___ to get a ticket for the 2006 FIFA World Cup, George has been standing in a queue for two days.
#90635
A
Determining
B
Being determined
C
To determine
D
Determined
Allen followed his customer across the yard and stood on the step of the house, two shopping bags.
#95426
A
lifted
B
having lifted
C
to lift
D
lifting