The circuit ______ carefully by the technician.
fixes
is fixing
is fixed
fixed
The wires ______ regularly by the technician.
check
are checked .
checked
are checking .
The faulty resistor ______ by the engineer
replaces
replaced
is replacing
is replaced
The battery ______ to the resistor
connected
is connected
connects
is connecting
The switch ______ to stop the current
is turned off
turned off
turns of
is turning off
The capacitor ______ by the power supply
is charging
charges
charged
is charged
The resistor ______ to the circuit by the engineer
is connecting
connected
is connected
connects
The capacitor ______ when damaged.
is replacing
replaced
replaces
is replaced
The switch ______ by the little girl.
turns on
turned on
is turned on
turning on
The battery ______ in the circuit.
places
is placed
is placing
placed
The resistor ______ to control the current.
is adding
adds
is added
added
The wires ______ to complete the circuit.
are connecting
connect
connected
are connected
The circuit ______ by the students.
is studying
studied
studies
is studied
The engineer ______ the resistor to improve performance last week
adds
is added
added
adding
The man ______ the battery for testing.
connects
is connected
connected
connecting
