Homing pigeon is useful as a ______ carrier because when taken from home, it will return atthe first opportunity.
C
暂无解析
Thehostsapologizedfor______thatsomeoftheirguestsmightbevegetarians.
Thesuspectcooperatedfullywiththepolicewhen______abouthisroleintheincident.
Insummer,shewouldsitinthegardenenjoyingthefreshairandthesmellofthethingsshe______.
In1900,theenergyderivedfromburningpetroleumwasonlyfourpercent______ofcoal.
There______nothingmorefordiscussion,themeetingendedearlierthanexpected.