Proficiency set phrases

To be on the c___ of a scientific breakthrough

One of my flatmates is really lazy and never pulls her ______ in the flat.

The latest i-phone is c_______ edge technology

I´ve set my s_____ on passing the Proficiency exam.

Burning fossils fuels has had a number of serious r__________ for the planet.

You have'nt been producing much work lately- you really need to p___ your s____up!

I'm not a scientist so please talk to me in l_______ terms!

I've set my ______ on getting that job! It's my dream job!

This artist was on the v_______ of the movement

At the beginning of the novel, the author really sets the s____ well by describing the landscape vividly.

If you don´t wash your hands you run the _____ of catching the virus.