Answer:
a) <em><u>Every</u></em> men and women have to do their duty to the country.
b) One third of the <em><u>people are</u></em> ignorant.
c) The furniture <u><em>in</em></u> this school <u><em>comes</em></u> from a reputed shop.
d) Some of the students <em><u>were</u></em> absent today.
e) His father <u><em>has</em></u> died two years ago.
f) <em><u>The</u></em> virus <u><em>came</em></u> from China.
g) Rice is <em><u>grown</u></em> in all villages in Bangladesh.
h) You should <em><u>have </u></em>done this before.
i)<em><u>Does</u></em> retaking <em><u>mean</u></em> taking courses that were missed?
j) Breakfast is an important meal, <em><u>he</u></em> is always taking breakfast.
Explanation:
I think this is not the only way to correct them... there are many other ways. This is how i would wrote each of the sentences, but its up to you to decide if you want to use this :)