The dog has worms.

　　這條狗體內有寄生蟲。

　　The dog has fleas.

　　這條狗有跳蚤。

　　Just as John has changed, so has his wife.

　　正如約翰已經變了，他妻子也變了。

　　It has now become evident to us that a mistake has been made.

　　我們已經清楚出了差錯。