1.

1). A-B2). A-D3). B-C4). C-D

Answer»

Words B and E have been interchanged.

(B) :- here ‘designed’ is the correct word. The meaning of ‘designed’ is ‘planned or conceived in detail or for a specific PURPOSE’. Since NASA has planned a rover to roll along the surface of Mars for three months, ‘designed’ is the most suitable word here.

(E) :- here ‘astounded’ is the correct word. The meaning of ‘astounded’ is ‘amazed, astonished’. ‘astounded’ is the correct word here because the device that was designed for three months, WORKED for fifteen years, and this amazed the U.S. space agency.

Other words are PLACED correctly.

Correct sentence – ‘Opportunity, a remarkably durable NASA rover designed to roll along the surface of Mars for three months, has stopped communicating with EARTH after 15 years of SERVICE, officials said on Wednesday, ending a mission that astounded the U.S. space agency.’



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