When the man with a scar came into the café I noticed a  ______ look come over the waitress face although she did not say anything.

---Have your working conditions improved? ---No,         than before, I’m afraid.

 The audience fixed their eyes on the magician, _______ about how he performed the magic trick.

I's ________ of Bob to do a disappearing act just when there's work to be done!

Don’t be too general. Please give a ________suggestion on how to deal with this difficulty.