When I came through the customs at the airport, I had to pay ________ on a clock I had bought.
A、taxesC
暂无解析
SinceWilliamhadbeenseriouslyillforseveralmonths,hisparentswereworriedabout________toreturntoschoolfull-time.
Aftersomanydayswithoutrain,thegroundquickly________thelittlerainthatfelllastnight.
Becareful,_______you'llfalldown.
Itisusefultoscience_______theearthasanobjectinspace.
Theterriblenoiseis______memad.
