The traffic rule says young children under the age of five and _______ less than 25 kilograms must be in a child safety seat. 
#97069
A
being weighed
B
to weigh
C
weighed
D
weighing
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 _______ on time, this medicine will be quite effective. 
#98430
A
Taking
B
Being taken
C
Taken
D
Having taken
The two old sisters,_______ so long,held each other and burst into tears.
#98165
A
being separated
B
having been separated
C
having separated
D
had been separated