D
題意：
為什么奶奶看起來(lái)不再高興了?
A.因?yàn)槲覀冏〉秒x她很遠(yuǎn)。
B.因?yàn)槲覜](méi)有幫忙做填字游戲。
C.因?yàn)槲覀儧](méi)能讓她的生活舒適。
D.因?yàn)樵贈(zèng)]有集市時(shí)間了。
根據(jù)第三段 Then many people moved to big cities. There was no longer"Fairtime". Grandma became very old and was gradually going blind year after year. My parents and I moved to live with Grandma in her house. We did our best to make her day-to-day life as comfortable as possible. I was at high school then. What I often did at home was to help Grandma with the daily newspaper's crossword puzzle（填字游戲）. However，she didn't look happy. She often sat in her room for hours，without saying a word. 然后許多人搬到了大城市。 不再有“集市時(shí)間”。 奶奶年事已高，一年比一年逐漸失明。 我和父母搬到奶奶家和她一起住。 我們盡最大努力使她的日常生活盡可能舒適。 那時(shí)我還在上高中。 我在家經(jīng)常做的就是幫奶奶做日?qǐng)?bào)上的填字游戲。 然而，她看起來(lái)并不高興。 她常常一坐就是幾個(gè)小時(shí)，一句話也不說(shuō)。可知，奶奶看起來(lái)不再高興了的原因是再?zèng)]有集市時(shí)間了。故選D。
