Explanation

ISDN is a set of communication standards for simultaneous digital transmission of voice, video, and data.

It allows faster and more reliable connectivity than traditional analog systems.

Explanation

CAD (Computer-Aided Design) and CAM (Computer-Aided Manufacturing) are used together to design and produce products.

This technology improves accuracy, efficiency, and automation in manufacturing.

Explanation

John Dewey is known as the father of the activity-based curriculum due to his emphasis on learning by doing.

He believed education should be child-centered and connected to real-life experiences.

Explanation

Planning curriculum starts with identifying the issues or problems that need to be addressed.

This helps guide the design and assessment steps that follow.

Explanation

"Shall I open the window?" is a polite way to offer help or do something for someone.

Make an offer means ایک پیش کش کریں

Explanation

"It doesn't matter" is a polite and forgiving way to accept someone's apology.

It doesn't matter means اس سے کوئی فرق نہیں پڑتا ہے

Explanation

In indirect speech, "Will you" becomes "if you would" after a reporting verb like "asked."

"Tomorrow" changes to "next day" in indirect speech.

Explanation

Conserve means to protect or save something, especially from loss or harm.

Preserve is the closest synonym, as it also means to maintain or safeguard resources.

Conserve means کسی چیز کی حفاظت یا بچانے کے لئے

Preserve means کسی چیز کی حفاظت یا بچانے کے لئے

Explanation

Miserable means feeling extremely unhappy or uncomfortable.

The opposite (antonym) is satisfied, which reflects a state of contentment or happiness.

Miserable means انتہائی ناخوش یا تکلیف محسوس کرنا

Satisfied means اطمینان یا خوشی کی حالت

Explanation

Imperative sentences give commands, instructions, or requests — like telling someone to move chairs.

They often omit the subject "you" and start with a verb directly.