Homing pigeon is useful as a ______ carrier because when taken from home, it will return atthe first opportunity.
A、meaningC
暂无解析
Americans eat ______ vegetables per person today as they did in 1910.
______wecanhopeforistoavoidcompletefailureinthecominggamewiththatstrongteam.
JeansaresohotthesedaysthatbignamestarsappearonTVadvertisingfortheir______brands.
Mrs. Smith locked both the front and the back doors before she went to bed______thatsomeone might steal into the house at night.
In 1900, the energy derived from burning petroleum was only four percent ______ of coal.
