Explanation

The sentence is in the present tense ("Did you"), so the correct verb form is "pass".

"Passed" would be used in a past-tense sentence without "did," such as "You passed your matric exam."

Explanation

Explanation

Explanation

"Draught" refers to a current of air, often used to describe a gentle breeze or a flow of air through a room.

In this sentence, "draught" is the correct choice, as it implies that there is a flow of air coming through the window.

Explanation

 The phrase “in about twenty minutes” indicates the time until the action (leaving) will occur.

Using “in” specifies the duration from the current moment to when you’ll be ready.

Explanation

Present continuous "is facing" is used for an ongoing issue.

Explanation

Off is a preposition here.

Here off means at a distance

Keep the car off the flower beds

Explanation

• You had better consult a physician.
• Note: We use 'had better' to refer to the present or the future, to talk about actions we think people should do or which are desirable in a specific situation.

Explanation

Usage of Behind

Behind --- In, to or towards the near or later in time.

Examples:

He followed behind.

The girls were far behind the car.

The train was behind time.

Explanation

This is a well-known proverb: "Necessity is the mother of invention."

It means that needs and problems inspire creative solutions.

Necessity ضرورت

Invention ایجاد