Explanation

 "Your teachers have"is the correct construction.

"Have" agrees with the plural subject "teachers" and indicates the past tense.

"(B) haven't your teachers" is incorrect because it's in the present perfect tense. The sentence is asking about something that happened in the past, not the present.

"(C) your teacher have" is incorrect. "Your teacher" is singular, so "has" should be used.

Explanation

"Information about people" is the correct prepositional phrase.

We use "about" to indicate the subject of the information.

Explanation

"Did not stop" is the correct past tense form of the verb "stop".

"Covered" is the simple past form that matches the sequence of past events.

This sentence follows the structure of two completed actions in the past.

Correct sentence:

"Ali did not stop studying until he covered all the exam topics."

Explanation

The sentence needs a past participle form of the verb "repair" after the preposition "have,"

This indicates that the electrician should have the switch repaired.

The structure "have someone past participle something" means that someone else should get something done by someone else.

Explanation

The rain continued for most days when we were in Lahore, but fortunately, there wasn’t much damage in the city.

 "Most" refers to a large portion of time; "much" fits the uncountable noun "damage".

Explanation

Sara is the tallest girl in our school.

“The tallest” is a superlative form that compares more than two.

Explanation

 The correct structure is “so + adjective + that” to show cause and effect.

"The question paper was so complicated that it was completely incomprehensible."

Explanation

Given:

40% of employees didn't go to the meeting, and this equals 28 employees:

40% of x = 28

(40/100)x = 28

0.4x = 28

x = 28 / 0.4

x = 70

Explanation

1 meter = 100 centimeters.

1 centimeter = 10 millimeters.

Therefore, 1 meter = 100 × 10 = 1000 millimeters.

Explanation

Let's calculate the percentage of girls:

Given ratio: Boys:Girls = 5:3

Total parts = 5 + 3 = 8

Percentage of girls = (3/8) * 100

= 37.5%