Match the phrases on the left with their definitions on the right. The tiles in the right-hand column are sortable. ANSWERS
- a cog in the machine
- be on the same wavelength
- get your wires crossed
- blow a fuse/gasket
- grease the wheels
- it's not rocket science
- in layman’s terms
- reinvent the wheel
- a silver surfer
- as bright as a button
- become extremely angry quickly or suddenly
- waste a great deal of time or effort in creating sth that already exists
- have the same opinions and feelings as someone else
- used to say that something is not difficult to do or understand
- an old person who uses the Internet
- a small or insignificant member of a larger organisation or system
- very intelligent and full of energy
- do something to make an operation run smoothly
- in plain or simple language
- talk about two or more people who fail to understand each other