His three years of hard work_____ — he did a good job in the 2012 NMET and was admitted into a key university.
-----When will they come back? -----I _____ don’t know.
She was more headstrong than ______.
Though ______, many laws of nature exist.
The servant did _____ she could ______ the revolutionary.
The missing boys were last seen _____ near the river.