It is well known to us all that a lot of rivers _______by factories.
#102816
A
are polluting
B
have been polluting
C
are being polluting
D
are being polluted
推荐题目
—What were you doing when I phoned you last night? —I _________my painting and was starting to take a bath.
#104335
A
have already finished
B
was finishing
C
had just finished
D
was going to finish
—Why were you so late this morning? —I _____ in heavy traffic for an hour on the way here.
#101422
A
have been caught
B
have caught
C
had caught
D
was caught
----How long can I keep the book? ----A week．You _____to return it by Monday．
#103244
A
expect
B
will expect
C
are expected
D
will be expected
Remember to send me a photo of us next time you ______ to me.
#104278
A
are writing
B
will write
C
has written
D
write
Tom is very happy in China during this period because his Chinese ________ every day.
#99725
A
has improved
B
is improving
C
improved
D
is improved