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ç³»å¨è¯ï¼1. BEå¨è¯ï¼5个 am is are was were
2. æå®å¨è¯ï¼taste / feel / sound/ look/ seem/ smell
3. 表延ç»çå¨è¯ï¼keep(quiet)/ remain(silent)/ stay(open)ç
4. 表ååçå¨è¯ï¼go(bad/mad/wrong)/turn(red)/ become/ grow(old)/ fall(asleep)