His parents both died a few years ago and he became an orphan, so a kind person ______ him ______.
Although this medicine can cure you ________your illness, it has a bad effect____ you.
Only after the woman had her own child ________ how difficult it was to be a mother.
Mrs. White showed her student some old maps _________from the library.
She smiled happily,________ a set of amazing white teeth to us.
John Snow found that the polluted water was _________ for the outbreak of cholera.