9 Write can or can't. Example: A spider can crawl. 1. A tortoise __ walk.

## Step 1<br />The problem is asking us to fill in the blank with either "can" or "can't" to make a correct statement about a tortoise. The sentence is "A tortoise __ walk."<br />## Step 2<br />We know that tortoises are not capable of walking in the same way that humans do. They move by crawling on their bellies.<br />## Step 3<br />Therefore, the correct word to fill in the blank is "can't", making the sentence "A tortoise can't walk."