Mary said that she  ___________ London.
#63780
A
has never gone to
B
has never been ,to
C
had never been to
D
had never gone to
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 Tom ________ in the library every night over the last three months.(2011·北京)
#63775
A
works
B
worked
C
has been working
D
had been working
 The house is dirty because it ________ since they moved out.
#63759
A
doesn't clean
B
isn't cleaned
C
hasn't cleaned
D
hasn't been cleaned
Because of the bad weather, my mother ____ and lay in bed. She ______ for a week. 
#63793
A
has been ill; was ill
B
fell ill; has fallen ill
C
fell ill; has been ill
D
fell ill; is ill
I have to see the doctor because I ________ a lot lately.
#63773
A
have been coughing
B
had coughed
C
coughed
D
cough