Explanation

In C++, the body of a function is enclosed within curly braces: {}.

This structure contains the instructions that will be executed when the function is called. 

Explanation

Explanation

At the primary level, teaching in the mother tongue helps children understand better and feel more comfortable.

Teachers using the child's native language can connect better.

It often show more patience in communication and learning.

Explanation

Laser technology is used in optical disks (like CDs and DVDs).

It allowing for precise data storage and retrieval.

Explanation

Cells are the basic building blocks of all plants and animals.

It forming the fundamental structure and function of living organisms.

Explanation

Explanation

• A is the mother of B and C (so, A is the parent of C).
• D is the husband of C (so, D is the spouse of C).
• Therefore, A is the mother-in-law of D (the parent of D's spouse).

So, the relationship between A and D is that of mother-in-law and son-in-law.

Explanation

The shortcut key for redoing the last action in Microsoft Office is CTRL+Y.

CTRL+Z ___ Undo last action.

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• Copy: Ctrl+C
• Cut: Ctrl+X
• Paste: Ctrl+V

Explanation

The correct use of tenses is: "Your mother had been waiting for you when you went to your friend's house."

This sentence correctly uses the past perfect continuous tense to describe an action that was ongoing in the past before another past action.

Explanation

The sentence "She sings a song" is in the present simple tense.

In this sentence, "sings" is the verb in the present simple form,

which indicates an action that regularly happens or is true in the present.

In this context, it means that "she" (the subject) regularly performs the action of singing a song.