1. 前文提到小狗看到Rosa就跑向她,后文说到家后小狗叫几声就跑走,F选项“Then it followed her happily as if they were good friends.”能自然衔接这一过程。
2. 前文表明Rosa起初不喜欢这只狗,后文说她甚至期待和小狗同行,A选项“But after a few days she got used to (习惯于) it.”起到转折过渡的作用,符合逻辑。
3. 前文说Rosa开始想念小狗,后文提到她只看到邻居牵着另一只狗,E选项“Suddenly she heard a bark, so she looked back quickly.”契合Rosa想念小狗时的反应,衔接上下文。
4. 后文妈妈解释了小狗不见的原因,C选项“I think I know what happened to your friend.”可以引出妈妈的解释,符合语境。
5. 后文提到Rosa虽遗憾不能再和小狗同行,但又为小狗的新生活感到开心,B选项“Rosa was sad and happy at the same time.”能准确体现她的复杂心情。