Is _______ (learn) a foreign language piece of cake?
piece of cake - very easy
What sport _____ you ____ (do) once in a blue moon?
once in a blue moon - an event that happens infrequently
When ____ (to be) the last time you ___ (feel) under the weather?
feel under the weather - feel unwell
What gadget _____(cost) an arm and a leg nowadays?
cost an arm and a leg = something is very expensive
What has _______ (to be) the best thing since sliced bread recently?
the best thing since sliced bread= a really good invention
______ you ever ____ (let) the cat out of the bag?
let the cat out of the bag=to accidentally reveal a secret
What _____ you do when it´s raining cats and dogs?
it´s raining cats and dogs=it´s raining heavily
When ___ (to be) the last time you ___(to be) on cloud nine?
to be on cloud nine=to be very happy
When ____ you usually hit the book?
hit the book=study
How often _____ your girlfriend have a cat nap during the week?
a cat nap=short sleep
