I found this poster on Kaplan and I think it’s great.

“Slippery customer” – English idiom
Other examples from the web:
- Watch out for that girl with the red hat and don’t believe what she says. She’s a slippery customer.
- He’s a slippery customer, that Tim, I’ve never felt comfortable with him.
Watch out = to be careful; to remain vigilant.
To snatch = to take something or someone quickly and suddenly; to grab.
Untrustworthy = not able to be trusted.
Cunning = getting what is wanted in a clever and often deceptive way.
“Slippery” – What does it mean?
How are you feeling today?
“Just off the boat” – English idiom
“Be kind, for everyone you meet is fighting a harder battle”. – Plato
“Educating the mind without educating the heart is no education at all”. – Aristotle
“To be beat” – English slang
Slideshare
Slideshare is a community that allows people to upload and share slides and other resources. Its aim is to share knowledge online.
For example, this is a presentation on plural nouns in English:
This is a book on phrasal verbs in context:
This one could help you improve your vocabulary:
This is how it looks when you search for a topic:

First of all, you have to write the topic you are interested in (on the top), then you can click on the search icon. The image above shows you how it will appear on your screen. After you’ve clicked on the “search” button, you can change the language (look at the red arrow on the right). Thanks to this option, you will be able to find resources not only in English but also in other languages.
For example, choosing French, instead of English, this is what’ll appear on your screen:









