How can I fix missing size variant error during bulk import?

[ruoyucad]

I want to add a list of products by bulk importing with CSV, but it gave me a missing value error for my CSV file. 

for instance, my handle is new-tshirt-edition and I have 20 pictures for that handle. but my size variant only has 7 sizes, but I have 20 image srcs, so when I left the other 13 rows blank. it throws me an error saying the size variant missing. how can I solve this issue? 

Handle	Published	Option1 Name	Option1 Value	Image Src	Image Position
new-tshirt-edition	TRUE	Size	XS	https://abccoserpicture.s3.amazonaws.com/x/M20200364S-1.jpg	1
new-tshirt-edition			S	https://abccoserpicture.s3.amazonaws.com/x/M20200364S-10.jpg	2
new-tshirt-edition			M	https://abccoserpicture.s3.amazonaws.com/x/M20200364S-11.jpg	3
new-tshirt-edition			L	https://abccoserpicture.s3.amazonaws.com/x/M20200364S-12.jpg	4
new-tshirt-edition			XL	https://abccoserpicture.s3.amazonaws.com/x/M20200364S-13.jpg	5
new-tshirt-edition			XXL	https://abccoserpicture.s3.amazonaws.com/x/M20200364S-14.jpg	6
new-tshirt-edition			XXXL	https://abccoserpicture.s3.amazonaws.com/x/M20200364S-15.jpg	7
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-16.jpg	8
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-17.jpg	9
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-18.jpg	10
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-19.jpg	11
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-2.jpg	12
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-3.jpg	13
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-4.jpg	14
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-5.jpg	15
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-6.jpg	16
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-7.jpg	17
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-8.jpg	18
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-9.jpg	19
new-tshirt-edition				https://abccoserpicture.s3.amazonaws.com/x/M20200364S-size.png	20

[ruoyucad]

Thanks for your reply, I’m not entirely sure what you mean by duplicating the rows, and for the missing size variant? Do you mean I should put onesize for all 13 blank rows? But I thin Shopify only accept unique size variant