21.in a nutshell--in a few words

22.from top to bottom--completely;entirely

23.take the plunge--enter with sudden decision upon an unfamiliar course ofaction

24.on the tip of one's tongue--unable to be recalled

25.cheer up--feel happy;stop being sad or discouraged;become hopeful

26.hold off--postpone;delay

27.on cloud nine--a state of perfect happiness

28.back out--withdraw from an undertaking

29.grin and bear it--be as cheerful as possible in pain or trouble;do something without complaining

30.turn out to be--come to be;prove

31.bite off more than one can chew--attempt something that exceeds one's ability

32.in the air--uncertain

33.get hold off--find a person so you can speak with him

34.learn the ropes--acquire thorough or special knowledge of a job

35.tear oneself away from--depart with great reluctance;force oneself to leave

36.tie up--engage or occupy completely

37.touch on--mention a subject briefly or casually

39.see to it--take care;take the responsibility;make sure

40.get along with--live or work in harmony with