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Subject :IEO    Class : Class 6

Fill in the blanks in the passage from the given options :
First trials on airplanes Another significant phase in airplane travel ______ a few years later. Extensive research and development went into designing wartime planes that were used ______ the First World War. These planes were much faster, reaching speeds of 125 mph and flew to heights of 15,000 feet.
______ airplanes owe their development to the First World War, they are significantly popular today as passenger carriers. A flight is ___?___ today than earlier, with greater facilities and air traffic control.

A safer
B more safer
C safest
D safe

Ans 1:

Class : Class 7
a safer

Ans 2:

Class : Class 6
A is the right option

Ans 3:

Class : Class 5
The answer is option A.

Ans 4:

Class : Class 6
Sorry wrong answer Answer is "A",safer

Ans 5:

Class : Class 6
A. safer

Ans 6:

Class : Class 6

Ans 7:

Class : Class 7
A is the right option.

Ans 8:

Class : Class 7
A.safer is the correct answer

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