Idioms Week 1

to deal with problems calmly = to take things in your ________

a minor change that begins a major development, especially an undesirable one = The thin edge of the _________

to defend something that you believe in by arguing = to ______ one's corner

a person or a thing whose abilities, powers, or effects are not yet known = an ______ quantity

someone who behaves in an uncontrolled or unexpected way and is likely to cause problems for other people = a loose ______

a person ,especially a criminal ,who helps the police to catch another criminal ,for example by spending time with them and getting secret information = a stool _______

an ambitious, (aggressively) enterprising person who eagerly goes after what is desired = a go-________

To do something impossible or extraordinary = to walk on _______

to stop fighting in both a literal and figurative sense = to _______up your guns

to feel very happy = to walk on ______

to be in a risky situation = to walk on thin _______

if I got into a mess (and there's nobody to blame but me), I ______ed myself into a corner