—Why does the lake smell terrible?—Because large quantities of water_______________.
#99629
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
推荐题目
---When _______for Guangzhou? ---Next Monday evening.
#101166
A
are you leaving
B
were you leaving
C
you are leaving
D
you were leaving
Through years of hard work, Mrs. Smith, who ____ as a secretary for five years, is general manager of the company now.
#100043
A
serves
B
served
C
has served
D
had served
____You seem to be glad to come back in your hometown. _____Yes , I ____________.
#103186
A
worked in Shanghai for 10 years.
B
have worked in Shanghai for 10 years.
C
am working in Shanghai for 10 years.
D
had working in Shanghai for 10 years.
--- I beg your pardon, but I didn’t quite catch you. --- Oh, I ______ myself.
#104276
A
am talking to
B
talked about
C
have talked to
D
was talking to
---You’re trembling. What’s happened?---- I ______ outside in the cold for over an hour waiting for a bus.
#100468
A
was standing
B
have been standing
C
stood
D
will stand