question: dog may extends its head and neck during swallowing
Capitalize this past sentence correctly.
A: Dog may extends its head and neck during swallowing

question: sample: whole blood, serum, plasma
Capitalize this past sentence correctly.
A: Sample: whole blood, serum, plasma

question: so in that sense, i feel that i only really spent half an hour of my life, says andrei.
Capitalize this past sentence correctly.
A: So in that sense, I feel that I only really spent half an hour of my life, says Andrei.