--------work without any delay?

A set up
B set to
C set down
D set on

Correct Answer: set to

Set to means to start working or dealing with something in an energetic and determined way:If we all set to, we should be able to finish the job in a week. 
Bissoy MCQ

Related Questions

The passive form of "Write the letter without any delay" is -
He is too important for tolerating any delay.

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