..."I have waited for an opportune moment to undertakethat enterprise, so that my vengeance may be complete... 
Antonio de Trueba Henry J. Gill 「The Cid Campeador」
...We find ourselves in something of a difficulty over that matter; and your arrival in the nick of time proves most opportune...
Harry Collingwood 「A Middy of the Slave Squadron」
...We too wouldhave thus expressed the three moments in the morning in which itwas opportune to invoke the Açvinâu...
Angelo de Gubernatis 「Zoological Mythology, Volume I (of 2)」
...As to the interesting observations reported by Ferrari and Pulle, it seems to me opportune to quote here some extracts from the first of these distinguished authors...
Henny Kindermann Agnes Blake 「Lola」
...We shall return to him at an opportune moment...
J. H. Fabre 「The Wonders of Instinct」
...This morning's meal was to be the last we should make at our friendlylittle tarn, whose opportune waters, ripe figs, miniature mountains, andimitation fortresses, will long linger in my recollection...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
...The opportune death of one of her assigned servants enabled Sarah Purfoy to instal the escaped convict in his room...
Marcus Clarke 「For the Term of His Natural Life」
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