They _____ written three letters already.AhaveBhasCwasDisAnswer: A. have Read Explanation: Sentence ൽ just, just now, yet, ever, so far, already, recently, lately, till now എന്നി വാക്കുകൾ വന്നാൽ present perfect tense (has/have + V3 ) ഉപയോഗിക്കണം .Read more in App