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语法口诀语法口诀进行时，正进行，标志 Look 和 Listen ； 有时 now 句中现，“ be ＋ v － ing” 时态成。 若问 be 用何形式，须看主语数、人称。 He ／ She is, I am ． you, we, they 后 are 紧跟。v － ing 形式要牢记，三种构成皆分清。一般问句 be 提前， be 加 not 否定成！特殊问句需戴帽， what\where 来加盟！ verbplayrideputVerb-ingplayingridingputtingIs he eating dinner? Yes,he is. Is she shopping in the mall? No,she isn’t.She’s drawing picturesWhat are they doing ? They are playing basketball? Where are they playing basket ball?At school.