Sam _______ some knowledge of the computer just by watching others working on it. [ ]

It’s hopeless to finish the work today,____

一位老年妇女与世长辞，殡仪馆收到多副挽联，其中有三副分别是逝者儿子、女婿、侄子送的，均未署名，根据其内容张贴正确的一项是( )①我欲招魂，四五日苦雨凄风，问归何处情怜犹子，数十年嘉言懿范，痛想生平②梦断北堂春雨萱花千古恨，机悬东壁秋风桐叶一天愁③获选昔乘龙犹记东床惭坦腹，游仙今驾鹤那堪北堂仰遗容

I don’t believe we’ve met before,I must say you do look familiar[ ]

missed your ____, and you will haveto wait for the next round.