QUESTION: Fix punctuation: 20 And he said unto his daughters And where is he why is it that ye have left the man call him that he may eat bread
ANS: 20 And he said unto his daughters, And where is he? why is it that ye have left the man? call him, that he may eat bread.
QUES: Read the introductory paperThe ShortestNetwork Problem1989 inScientific Americanabout the Steiner tree problem

correct the punctuation.

CORRECTED: Read the introductory paper,"The Shortest-Network Problem"(1989), inScientific Americanabout the Steiner tree problem.
Question: That they all may be one as thou Father art in me and I in thee that they also may be one in us that the world may believe that thou hast sent me John 1721
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Answer: "That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me" (John 17:21).
Candida normally thrives in female vagina and without causing any signs and symptoms of existence or infection

Can you repeat this sentence, but add in punctuation?
Candida normally thrives in female vagina and without causing any signs and symptoms of existence or infection.
input: It is not necessary to pretend
fixed: It is not necessary to pretend,
The newly developed microinjection unit combines an 8 or 15mm screw for melting standard granulate with an 8mm screw for injection

Can you repeat this sentence, but add in punctuation?
The newly developed micro-injection unit combines an 8 or 15-mm screw for melting standard granulate with an 8-mm screw for injection.