I have forgotten memories about my trip to Sentosa in Singapore. (FORGET)

• Explanation: The past participle "forgotten" is needed here, as it completes the sentence about past memories.

Children nowadays are more aware of the environment's protection than we did in the past. (PROTECT)

• Explanation: "Protection" is a noun formed from "protect," and it fits the context of children being aware of the environment.

The most memorable part of our tourism was the boat ride on the River Cam. (TOURISM)

• Explanation: "Tourism" is a noun, referring to the act of traveling or visiting places, which fits the context of the sentence.

We are getting ready for our graduation performance. (PERFORM)

• Explanation: "Performance" is the noun form of "perform," which fits here as it refers to the event or activity associated with the graduation.

After weeks of talk, my parents decided to buy me a laptop for my studies.

• Explanation: The verb "decided" is in the past tense, so the correct form is the infinitive "to buy."

This is the first time I have tried this local specialty.

• Explanation: "Have tried" is the present perfect tense, used to express the experience up to the present moment.

My mother has been cooking all morning because it was my sister's birthday.

• Explanation: The present perfect continuous tense "has been cooking" is used to show the action of cooking started in the past and continues up to the present.

We wish our dad would pick us up on time tomorrow.

• Explanation: "Would pick" is used in the context of a wish for the future, expressing a desire or hope about a future event.