What type of sentence is the following?

will you close the door, ?

declarative
exclamatory
interrogative
imperative

Arecent challenge to the european union created by a member state is?

How does sociology account for the cause of drug and alcohol addiction?

In watson’s little albert experiment, what does the loud metal clanging noise represent? a: neutral stimulus b: unconditioned stimulus c: unconditioned response d: conditioned stimulus e: conditioned response