The servant might have opened the secret.

Explanation
Active Voice : Might have + third form of a verb Passive Voice : Might have been + third form of a verb.

Explanation
Because earthquake gives vowel sound. Earthquake means زلزل ہ

Explanation
This is a sentence of present indefinite tense. Helping Verbs A.V = Do/Does P.V = is/am/are Sell is an irregular verb which means فروخت کرنا Sold is the second form of Sell. Sold is also the third form of Sell.

Explanation
Given sentence is in Past simple tense and it is in active voice, we need to change it into passive voice. Rule : Subject + (was / were) + V3 + Optional Agents.

Explanation
Millennium means ایک ہزار سال کی مدت

Explanation
The sentence is in Past Continuous Tense.  Present Continuous Tense Active Voice : Subject + is/am/are + First of verb + ing + object. Passive Voice : Object + is being/am being/ are being + third form of verb + by + subject.

Explanation

Explanation
The term variance refers to a statistical measurement of the spread between numbers in a data set

Explanation
Average speed,=2×x×yx+y=2×100×150100+150=200×150250=120km/hr

Explanation