The river is said __________ in a fire during the past 10 years. 
#91800
A
to have polluted
B
it has been polluted
C
to pollute
D
to have been polluted
推荐题目
When he ran downstairs, he tried to avoid ____by the teacher.
#93197
A
being seen
B
seeing
C
to be seen
D
to see
 When he came to, he found himself _____ on a chair, with his hands _____ back.
#98856
A
to sit; tying
B
sitting; tying
C
seating; tied
D
seated; tied
---What do you think made her so upset? ---_____________ her  hometown.
#95531
A
As she missed
B
Missed
C
Because of missing
D
Missing
He requested that all the soldiers _____ the news secret.
#95702
A
keep
B
kept
C
keeping
D
to keep