There must be ____ with the machine.

 —If you don’t like the red coat， take the blue one.　　—OK， but do you have ______ size in blue？This one’s a bit tight for me.

He was an _____ poet at that time and his _____ poems spread through all the country.

— How was your job interview?— Oh, I couldn’t feel ______. I hardly found proper answers to most of the questions they asked. 

Don’t be too ________ about things you are not supposed to know．