Unit 11 Quiz

It’s very easy now to __________ a message to your friends.

• get
• do
• send
• play

We use emails and messages to __________.

• communicate
• correct
• study
• sing

I use my smartphone to __________ a video call.

• go
• see
• make
• write

The mail was first __________ in Persia.

• invented
• invited
• discovered
• done

We must find a __________ to the problem of pollution.

• solution
• question
• solve
• population

The __________ was invented in the 1830s.

• computer
• telegraph
• radio
• metro

Some parcels are __________ by drones.

• flown
• done
• delivered
• bought

A / An __________ is a small machine or invention that does something useful.

• smartwatch
• train
• gadget
• player

__________ were invented so that cars could move.

• Cameras
• Engines
• Drones
• Fridges

Scientists are __________ some research on drones.

• making
• playing
• doing
• seeing