"in which there is sand" ... "sand is in it"

[Sitifan]

The Eskimo boy plays with a sealskin ball in which there is sand.
= The Eskimo boy plays with a sealskin ball (w)____ sand is in it.
What word should I use to fill in the blank?
Thanks a lot for your reply.
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Thank you very much for your reply.

[Yankee]

Hi Sitifan

I'd say that you cannot finish the second sentence with a single "w" word without changing the meaning. Are you sure that you typed the end of the second sentence correctly?

Grammatically speaking, the word 'when' would fit in your second sentence. However, the meaning would then be a little different from the first sentence.
.
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In order to keep the meaning the same as the first sentence, you could possibly say this, for example:

"The Eskimo boy plays with a sealskin ball with sand in it."
(Note, however, that I have removed the word 'is'.)
.
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"Nearly all men can stand adversity, but if you want to test a man's character, give him power." ~ Abraham Lincoln

[Molly]