already (adverb) before some time
necessary (adjective) needed
stand by (idiom) to wait and do nothing
ordinary (adjective) regular, usual
in the shop (idiom) somewhere getting fixed by professionals
ever (adverb) at any time
cancel (verb) to change from doing something to not doing it
Let me guess (idiom) said before you say what you think is the real reason for what somebody said.
Fine (idiom) being okay with something or at least not wanting to talk about it anymore.
guarantee (verb) to promise something will happen or is true.

Quizzes