Linking Verbs: Underline the Linking Verb in each sentence

Helping verbs and Verb Phrases: Underline the main verb twice and the helping verb once in the sentences below. The main verb may be an action verb or a linking verb. Look carefully!!! 1. My grandfather has traveled to Europe many times. 2. You must have heard all that noise last night! 3. Those children are wearing their seat belts. 4. ................
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