Parents used to keep their girls at home to do the day work and look after their siblings.

Correct answer: A
Explanation: "The day work" should be changed to "day-to-day work" or simply "work" without "the."

Today we use machines to do the same things with fewer effort and time.

Correct answer: B
Explanation: "Fewer" should be replaced with "less" because "effort" and "time" are uncountable nouns.

With advancement in technology, transportation becomes much easier and faster.

Correct answer: B
Explanation: "Becomes" should be changed to "has become" to match the context of recent development.

In mine neighbourhood, most people still live in mud and wood houses.

Correct answer: A
Explanation: "Mine" should be "my" because "mine" is a possessive pronoun, and "my" is used to describe the neighborhood.

There is now equally education opportunities for both boys and girls.

Correct answer: B
Explanation: "Equally" should be changed to "equal" to correctly modify "education opportunities."