[解析]
(1)细节理解题。根据第一段Parents are not to ride with children on the bus,and in no way are parents to come to the school,whether to drop off their children or to take pictures.(父母不能和孩子一起乘坐公共汽车,也不能来学校,无论是送孩子还是拍照。)可知,校长来信的主要内容是父母不允许把孩子送到学校。故选D。
(2)词句猜测题。根据第二段Shy and sensitive,they hid whenever the doorbell rang.(他们既害羞又敏感,只要门铃一响,他们就躲起来。)和my girls would hide under a bus seat,or somehow get lost or stolen(我的女儿们会躲在公共汽车座位下面,或者不知怎么地迷路或被偷)可知,作者害怕女儿们会躲在公共汽车座位下面,或者不知怎么地迷路或被偷,划线词apprehension的意思是"害怕",和fear意思相近。A.Promise许诺;B.Fear害怕;C.Plan计划;D.Impression印象。故选B。
(3)细节理解题。根据倒数第三段But I ran before the bus,not after the bus.(但是我跑在公共汽车前面,而不是在公共汽车后面。)和倒数第二段The bus finally overtook me a few hundred yards before the school building.Out of breath,I secretly moved to the front gate,hiding safely behind a large sports car.(公共汽车终于在离学校大楼几百码的地方追上了我。我上气不接下气地偷偷跑到前门,安全地躲在一辆大跑车后面。)可知,作者在看到她的双胞胎上车后尽快向学校门口跑去。故选D。
(4)细节理解题。根据最后一段Morgan stayed tightly behind,but she was smiling and holding her sister's hand.I said it was the sweat and the sunblock that made me teary.I was lying about that part.(摩根紧紧地跟在后面,但她微笑着握着妹妹的手。我说是汗水和防晒霜让我流泪。这一点我撒谎了。)可知,看到她的双胞胎快乐和安全时的情绪反应让作者哭。故选C。