－Why does the river smell terrible? －Because the water_______.
#42170
A
was polluted
B
has been polluted
C
will be polluted
D
has polluted
推荐题目
----Where is your sister? -----She _________ my mom with cooking.
#41584
A
is helping
B
helping
C
is help
D
helps
---Where is your father?---He isn’t here. He __________ Yushu to help the people in trouble.
#41976
A
has gone to
B
has been to
C
went
D
is going
---How long ______ you ______ the bicycle? ---About two weeks.
#39179
A
have, had
B
have, bought
C
did, buy
D
have, get
Mr. Smith ____ the village since last year.
#42203
A
left
B
has left
C
has been away from
D
was away from