My parents usually do their shopping on Saturday morning but today they are at home. It is their wedding anniversary and my brother and I are planning a party for them. We are making a delicious chocolate cake and sirloin steak with creamed mushrooms. Our mom loves fish so we are preparing her grilled salmon.

Explanation:

• are (34) — Present Simple for a permanent state/current situation.
• is (35) — Present Simple, stating a fact (the anniversary is today).
• are planning (36) — Present Continuous, because it's an action happening now (they're in the process of organizing the party).
• are making (37) — Present Continuous, as it describes an action in progress (they're currently preparing the cake).
• loves (38) — Present Simple, because it expresses a general truth/habitual preference (mom always likes fish).
• are preparing (39) — Present Continuous, since it refers to an ongoing action (they're in the middle of preparing the salmon).

Answer: The explanation correctly identifies the tense and reason for each verb usage.