c__ a__ a___ a___ a l__
cost an arm and a leg - Very excessively pricey
o___ i___ a b____ m____
Once in a blue moon - Very rare
s___ e____ t__ e_____
see eye to eye - Feel deep understanding with the others about something
h___ a w____ o_ t_____
have a whale of time - Have a wonderful time
r____ c____ a____ d_____
rain cats and dogs - Rain heavily
h___ a___ i___ p____
have ants in pants - Worried, often because of excitement or nervousness.
l_ t_ c_ o_ o_ t_ b_
let the cat out of the bag - To reveal a secret or fact, often unintetionally
w__ p___ f____
when pigs fly - Equivalent to "No way"
f_____ f___ w___ f___
fight fire with fire - To confront an opponent or challenge by using the same aggressive or similar ways that they are using against you
o__ t___ s___ b____
on the same boat - To be in the same difficult or unpleasant situation as other people