It is advisable to .......... all the files on your computer regularly, in case of breakdown.

• afford

• upload

• back up

• download

This futuristic ............ sweeps the floors by itself.

• device

• chip

• flash-drive

• drone

The aerial photograph was taken by a camera attached to a ......................

• helicopter

• chip

• WI-FI

• drone

Where we live there's no ...................... so we use satellite.

• wire

• broadband

• water

• high-tech

It is now possible to have ..................... connections between lots of different devices in your home.

• high

• browse

• wireless

• driverless

It's easy to waste time ....................... online.

• searching

• looking

• sailing

• browsing

You can insert a ................... in your pet now as a means of identification.

• crisp

• wire

• coin

• chip

Robert ................. a film to watch that evening and turned out to be another one.

• downloaded

• browsed

• got

• wired

Rachel built a ....................... that could lock and unlock her front door remotely.

• gadget

• mechanism

• control

• jug

Internet content must now be optimized for ......................devices

• wireless

• hand-held

• high-tech