Explanation

Dynamite was invented by Swedish chemist Alfred Nobel in the 1860s.

Alfred Nobel the first safely manageable explosive stronger than black powder.

Explanation

Dengue virus is the cause of dengue fever.

It is a mosquito-borne,

single positive-stranded RNA virus of the family Flavivirus.

Explanation

The full idiom is "Cross your bridges when you come to them",

Meaning you should deal with problems only when they arise, not worry about them beforehand

Explanation

Nando's originated in South Africa in 1987.

The first restaurant opened in Rosettenville, Johannesburg. 

Fernando Duarte and his friend Robert Brozin, the founders of the first Nando's,

He bought a restaurant previously called "Chickenland" and renamed it Nando's.

The chain's story began hundreds of years ago when Portuguese explorers discovered the African Bird's Eye Chilli, also known as PERi-PERi. 

Explanation

A caucus is a meeting of supporters or members of a specific political party or movement.

The exact definition varies between different countries and political cultures.

Explanation

Grigori Yefimovich Rasputin was a Russian mystic 

He was born in the Russian Empire in Pokrovskoye, Siberia in 1869.

He became influential at the court of Tsar Nicholas II and Empress Alexandra. 

He was known for improving the condition of Aleksey Nikolayevich, the hemophiliac heir to the Russian throne. 

He was assassinated by a group of noblemen, including Prince Felix Yusupov in 1916 in Petrograd (now St. Petersburg).

He was poisoned, shot, and thrown into the Neva River. 

Explanation

He was promoted to DSP

Correct: "He was promoted DSP"  

"Promote" does not take "as" when used in passive voice.

Incorrect: "He was promoted as DSP" 

Incorrect: "He was promote DSP" (wrong verb form) 

Incorrect: "He promoted as DSP" (wrong structure) 

Explanation

The sentence "Our task had been completed before sunset" is converted to active voice,

You simply need to switch the subject and object, making "We" the subject and "our task" the object, resulting in "We had completed our task before sunset.". 

Passive voice structure: "Object + had been + verb (past participle) + by subject". 

Active voice structure: "Subject + had + verb (past participle) + object". 

Explanation

This is an odd series 

 3 3 5 5 7 7 9 9 11 11 13 13....

Explanation