Question: To begin your free file analysis simply draganddrop your QWK file inside the dotted lines below or click Browse My Computer and select your file
Please fix the punctuation.
Fixed: [To begin your free file analysis, simply drag-and-drop your QWK file inside the dotted lines below, or click "Browse My Computer" and select your file.]

Question: After overcast but mainly dry weather in the morning variable clouds with isolated rain showers will prevail
Please fix the punctuation.
Fixed: [After overcast, but mainly dry weather in the morning variable clouds with isolated rain showers will prevail.]

Question: He used a solution of soapy water and glycerine and dipped wire contours into it noting that the surfaces formed were minimal surfaces
Please fix the punctuation.
Fixed: [He used a solution of soapy water and glycerine and dipped wire contours into it, noting that the surfaces formed were minimal surfaces.]

Question: 2021 And the king of Israel went out and smote the horses and chariots and slew the Syrians with a great slaughter
Please fix the punctuation.
Fixed:
[20:21 And the king of Israel went out, and smote the horses and chariots, and slew the Syrians with a great slaughter.]