Show:
part of speech
idioms
often confused words
adverbs
prepositions
100
good

adjective/noun

100
Piece of cake
very easy
100
The gift was to WHO/WHOM?
WHOM
100
He ran from the store as quickly as possible.
Quickly
100
he ran into the street.
Into
200
learn
verb
200
cat got your tongue?
can't speak
200
"Video games are a WAIST/WASTE of time," declared the grumpy old man. 
WASTE
200
He gently broke the bad news to the class.
Gently
200
the song was about a bad break-up taylor swift had.
About
300
and
conjunction
300
shoot the breaze
talk casually
300
A was SORE/SOAR from my workout
SORE
300
She completely forgot about her friends birthday.
Completely
300
the answers were all within the text.
Within
400
her
pronoun
400
foot the bill
pay for something
400
He broke a PAIN/PANE of glass in the large window 
PANE
400
He did not feel well when he woke up.
Well
400
after a long day, I like to go home and rest.
After
500
into
preposition
500
egg on your face
embarassment
500
The Russians will METTLE/MEDDLE in the next election.
MEDDLE
500
It was a very sunny day.
Very
500
It has been a nice winter except for the snow.
except (for)