1. My mother takes the responsibility for running the household.
2. ASEAN has a population of 575.5 million, accounting for (about) 8.7 % of the
world's population.
3. It was not until Einstein was eight that he could speak.
4. Defensive players aren't allowed to interfere with the opponent's movements
unless the (that) player is holding the ball.
5. Never stop trying until/ till you get the right solution to the problem.