While watching television，____．
#92243
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings
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_________ many times, she still can’t remember it.
#95726
A
Had told
B
Having been told
C
Having told
D
Being told
______ twice a year，whether it is a car or a truck，is the rule that every driver must obey in this city.
#98135
A
Examining
B
Examined
C
Having examined
D
Being examined
Since then, more than 2 billion apps have been downloaded at prices ________ free to $900.
#96727
A
ranging between
B
ranging from
C
rang between
D
rang from
There are three eggs _______ by the hen_______ under the tree.
#96131
A
lied, laying
B
lay, lying
C
laid, lying
D
lain ,laying
_________fit, we ought to learn more about our body and be careful with what we eat.
#97581
A
Keeping
B
To keep
C
Having kept.
D
To have kept