—Why does the lake smell terrible?—Because large quantities of water .
#103559
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
推荐题目
Japan’s economy _______ in the past twenty years. No one knows how long it ______ before it regains its increase.
#100253
A
has been declining; will be
B
has declined; would be
C
had been in decline; would take
D
was on the decline; will take
-- Alice, would you like_________ a movie with us tonight?--- Sorry, but I don’t fancy ________ out today.
#99275
A
seeing, going
B
to see, going
C
to see, to go
D
seeing, to go Steven
Neil _______ in Xiamen for five years before he finally decided to go back to Scotland.
#103102
A
has been
B
was
C
is
D
will have been
-Peter!Hurry up! You _______ on the phone. -Oh, I _______ . Thank you.
#103918
A
are being wanted; come
B
are wanted; am coming
C
want; come
D
will want; should come