Itisgoodforyoutokeep的精選

問題詳情： Itisgoodforyoutokeep_______whenyouhavesomethingdifficult_______.   A.trying;todo   B.trying;doingit   C.trying;tobedone    D.totry;doingit【回答】A知識點：相似相近詞比較題型：選擇題...