---- Why does the river smell terrible? ---- Because large quantities of water______．
#99913
A
have been polluted
B
has polluted
C
has been polluted
D
have polluted
推荐题目
—Did you read the book Who Stole My Cheese ?—Yes. I___________it twice while in university.
#101528
A
reads
B
read
C
had read
D
has read
--- Daniel，why are you so late? We _______ you would be here an hour ago. --- Sorry. I ________ know you were all here.
#102326
A
expect, don’t
B
expected; don’t
C
expected, didn’t
D
expect; didn’t
By the time he arrived in Beijing, we _______ there for two days.
#102534
A
will have stayed
B
stay
C
have been staying
D
had stayed
(2013·高考北京卷)—So what is the procedure?—All the applicants________before a final decision is made by the authority.
#99689
A
interview
B
are interviewing
C
are interviewed
D
are being interviewed
He said that light ____ much faster than sound.
#100945
A
traveled
B
travels
C
is traveling
D
had traveled