That sentence does not have a linking verb.
The verb is looked, but it's an action verb in that sentence. It tells what we did.
However, look can be a linking verb when it means is or was as in this sentence.
Nicole looked beautiful in her new dress.
what is the linking verb conecting in the sentence: In daylight, we looked for the lost ring.
4 answers
we have eaten supper already
The book A Cricket in times Square _______ by George Selden
A venus flytrap has a set of jaws