下面句子中“而”的用法与其他句子不同的一项是（ ）

The main issue at the APEC meeting was a climate-change plan _____ by Australia’s Howard and backed by Bush. [ ]

Every year, we ______ a school trip to ZhouEnlai Memorial Hall.

下面的四组字母中不含有相同的元音音素的是（ ）

______ to computer games, he had no time to go over his lessons. As a result, he failed in all subjects.