Explanation

The correct correlative phrase is “so…that”, showing cause and result.

The sentence becomes complete and logical: He appeared so nervous that he began to take the test.

Explanation

The phrase "had so many students" fits grammatically and conveys the idea that the professor had a large number of students.

Had so many means بہت سارے تھے

Explanation

The word equal begins with a vowel sound, so the correct article is "an" instead of a or the.

The sentence expresses fairness, meaning every candidate should have an equal opportunity to contest the election.

Explanation

"I was confident on my success" is the grammatically correct usage.

Confidence is generally followed by in/on depending on context, but with "success," on is standard.

Explanation

Exclamation means حروف فجائیہ

Explanation

The given sentence “I have been invited to the party” is passive voice.

Its correct active voice form is “Someone has invited me to the party.”

Explanation

"Some" is used with uncountable nouns like "coffee" when making polite offers or requests.

"Can you please give me some coffee?" is grammatically and contextually correct.

Explanation

• The electrons that have been knocked out of the outermost shell of an atom are free electrons, which are able to move freely and conduct electricity.

Explanation

A real gas can be approximated to an ideal gas at low density.

This is typically achieved under conditions of low pressure and high temperature. 

Explanation

The resolving power of a telescope is its ability to produce separate images of two closely spaced objects, like two distant stars.

It is directly proportional to the diameter (aperture) of the objective lens or mirror.