indefinitely

"My sister found a small apartment near the university for her first year of college. "

"The teacher determined the parameters of the history project, specifying the required length and number of sources. "

"The divers encountered a huge school of mackerel."

"The storm caused severe damage to the school building. "

"The weather forecast for today predicts rain and strong winds, so I should bring an umbrella to school. "

"The teacher promised a forever lasting understanding of fractions. "

"My sister learned to write in a very careful manner. "

"My sister is always driving me crazy."

"the defining power of an optical instrument"

"The definite article "the" shows that we are talking about a specific house. "

"She cancelled the incorrect answer on the test with a thick black line. "

"The museum exhibit showed a beautiful fossil of a dinosaur bone. "