Explanation

Explanation

'infrequent', is an adjective which means 'not occurring often/ rare'.

As it means the same as 'rare', 

Explanation

Pneumonia is an infection that inflames the air sacs in one or both lungs.

The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and difficulty breathing.

Explanation

Explanation

Explanation

Journalists Maria Ressa and Dmitry Muratov were awarded the Nobel Peace Prize in 2021.

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Philippine journalist Maria Ressa and Russian journalist Dmitry Muratov received their Nobel Peace Prize on Friday in Oslo.

The two laureates were awarded the prize on October 8

Explanation

In January 2021, Samia Suluhu Hassan became the first woman president of Tanzania

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Samia Suluhu Hassan (born 27 January 1960) is a Tanzanian politician

19 March 2021 as the sixth president  of Tanzania

Suluhu became Tanzania's first female vice-president following the 2015 general election

SH26-8-2023

Explanation

James Web Space Telescope was the name of the telescope which is sent to space on December 24, 2021

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The James Webb Space Telescope is confirmed for the target launch date of Dec. 24, at 7:20 a.m. EST.

James Webb is famous for Webb, who ran the fledgling space agency from February 1961 to October 1968

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NASA's James Webb Space Telescope, the agency's successor to the famous Hubble telescope, launched on Dec. 25, 2021, on a mission to study the earliest stars and peer back farther into the universe's past than ever before

ND-28-08-2023

Explanation

The current UN Secretary General was reelected for a second term in June 2021, five-year-long is term

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António Guterres (right) takes the oath of office for his second five-year term as Secretary-General of the United Nations

United Nations Secretary-General Antonio Guterres was appointed for a second five-year term on Friday by the 193-member U.N. General Assembly.

SH26-8-2023

Explanation

Have you ever been to Amsterdam? کیا آپ کبھی ایمسٹرڈیم گئے ہیں؟

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The Above sentence is going to present perfect tense

have/has + past participle. 

you------> noun

Ever' and 'never' are always placed before the main verb (past participle). Ever is used: In questions 

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Option C is correct "as ever been "indicates the use of the present perfect tense. Also, have is used as an auxiliary here.

An auxiliary verb is used to form tenses, moods, tones, etc.

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The other options are wrong as no other tense other than the present perfect tense can be used.