31-sometimes
• occasionally
• intermittently
• sporadically
32-think
• conceive
• ponder
• contemplate
33-try
• attempt
• endeavor
• endeavor to do sth.
• venture
• Venture a small fish to catch a great one.
34-very
• unusually
• exceedingly
• profoundly
35-want
• crave
• crave sth.
• have a craving for sth.
• yearn
• yearn for/yearn to do
• long
• long to do/long for
36-old
• aged
• mature
• experienced
• used
• worn
• former
• previous
37-perfect
• flawless
• faultless
• a faultless performance
• ideal
• consummate
• a consummate performer
38-see
• regard
• regard sb. with suspicion
• behold
• witness
• gaze
• realize
• notice
39-make
• build
• construct
• produce
• assemble
• fashion
• manufacture
40-part
• section
• portion
• segment
• detail
• element
• component