Add punctuation: When some kangaroos are born They can only weigh about 1 gram
A: When some kangaroos are born They can only weigh about 1 gram.

Add punctuation: Fold the base form of a double triangle
A: Fold the base form of a double triangle.

Add punctuation: Are you facing error message cannot expand the folder while opening OST file then click here to fix the OST file issue
A:
Are you facing error message 'cannot expand the folder' while opening OST file, then click here to fix the OST file issue.