Havingcheckedeverything,hesatdowntodohishomework, 國語站 題庫 8.37K 大中小設置文字大小 問題詳情:Having checked everything, he sat down to do his homework, __________ he heard a lightening strike the electricity pole in the backyard. A.for B.when C.or D.but【回答】B知識點:連詞題型:選擇題 TAG標籤:#