feel like - have a desire or wish for

　　feel up to - feel well enough to or be capabele of

　　fall through - fail to happen or be completed

　　far cry form - completely different from;a long way

　　figure out - determine; reason out by thinking

　　fill in for -take anothers place

　　fill sb.in - tell what sb. should know

　　fall behind - lag; fail to accomplish something on time

　　get rid of - give something away; sell, destroy, or throw away something

　　get the ball rolling - start something; make a beginning

　　do without - manage without something

　　hold off - delay;postpone

　　hop to it - get started on something quickly

　　hit it off - get along well with someone

　　ins and outs - all the details; the various parts and difficulties to be seen

　　iron out - remove the difficulties or find an answer for

　　jump to conclusions - arrive too quickly at a decision or opinion