Choose the sentence with a progressive verb aspect. Some jewels were stolen from a local mansion. A witness had seen the thieves running from the residence. The robbers' getaway car was approaching the edge of town. A police officer manages to catch the thieves.

## Step 1<br />The progressive verb aspect, also known as the continuous aspect, is used to describe an action that is ongoing or incomplete. This is usually indicated by the use of the verb "to be" in conjunction with a present participle (verb ending in -ing).<br /><br />## Step 2<br />In the given sentences, we need to identify the sentence that uses the progressive verb aspect.<br /><br />## Step 3<br />Looking at the sentences, we can see that the sentence "A witness had seen the thieves running from the residence." uses the progressive verb aspect. The verb phrase "had seen" is in the past perfect tense, and the present participle "running" is used to describe the ongoing action of the thieves.