Explanation

Explanation

"They" is the correct subject pronoun referring to "the children", who are performing the action (crossing the road).

"Them" is an object pronoun.

Explanation

By whom were you taught such things?

In passive voice, the structure changes to "By whom + auxiliary verb + subject + past participle."

"Were" is correctly placed before "you" to maintain proper question formation.

Explanation

Flatworms (phylum Platyhelminthes) have unsegmented, flat bodies.

Earthworms and tapeworms have segmented bodies.

Explanation

Central Europe includes countries like Germany, Poland, and France, which have high population densities.

This region has well-developed infrastructure, industries, and urban centers, leading to a dense population.

Explanation

جملہ اسمیہ کے بنیادی اجزاء ہوتے ہیں: مبتدا، خبر، اور بدل (اگر ہو)۔

عام طور پر تین بنیادی اجزاء شمار کیے جاتے ہیں۔

Explanation

"Desert" refers to a barren, dry, sandy region with little rainfall.

Desert means صحرا

A dry, sandy land means ایک خشک ، سینڈی زمین

Explanation

A pie graph (or pie chart) is divided into sectors, where each sector represents a part of the whole.

The size of each sector corresponds to the proportion of the category it represents.

Explanation

Explanation

The given sentence is in active voice (past continuous tense): She was motivating her friends.

In passive voice, the object (her friends) becomes the subject: Her friends were being motivated by her.