He walked down the hills, and ________ softly to himself.
#100068
A
sing
B
singing
C
sings
D
was singing
推荐题目
When you are at home，give a call to let me know you safely．
#100432
A
are arriving
B
have arrived
C
had arrived
D
will arrive
Following the successful Beijing Olympics，Nanjing________70 million people for the 2014 Youth Olympic Games.
#99191
A
expects
B
is expected
C
is expecting
D
has expected
I have to see the doctor this afternoon because I ____ a lot lately.
#99964
A
have been coughing
B
had coughed
C
coughed
D
cough
Mr Smith ______ a book about China last year but I don’t know whether he has finished it.
#103700
A
has written
B
wrote
C
had written
D
was writing