what is the linking verb in this sentence: Penicillin, one of our most important drugs, come from mold.

Occurrences of major earthquakes are considered unusual, but minor tremors happen frequently. which word is an adjective?

The unblocking of popular social media websites in myanmar is an indication that.

Based on structural elements what type of expository text does this excerpt from a 1917 congressional address by president woodrow wilson exemplify