Answer Explanations

Question 1 Explanation

The correct answer is watered. The sentence includes “yesterday afternoon,” which shows that the action happened at a finished time in the past. “Water” is a regular verb, so we add -ed to make the Past Simple form. In positive Past Simple sentences, regular verbs usually take the -ed ending.

Question 2 Explanation

The correct answer is watch. In negative Past Simple sentences, we use didn’t plus the base form of the verb. The auxiliary verb didn’t already shows that the sentence is in the past. For this reason, the main verb must stay in its base form.

Question 3 Explanation

The correct answer is finished. The sentence talks about an action completed before dinner, so the Past Simple is needed. “Finish” is a regular verb, and its Past Simple form is made by adding -ed. The sentence means that the homework was completed in the past.

Question 4 Explanation

The correct answer is clean. In Past Simple questions, we use did plus the base form of the verb. The word did carries the past meaning, so the main verb does not take -ed. This is why the base form is correct in this question.

Question 5 Explanation

The correct answer is helped. The word “yesterday” shows that the action is finished and happened in the past. “Help” is a regular verb, so we add -ed to form the Past Simple. The sentence describes a completed action in the kitchen.

Question 6 Explanation

The correct answer is stay. After didn’t, the main verb must be in its base form. We do not use the Past Simple form after didn’t because the auxiliary already shows the past tense. The sentence means that they stayed only for a short time, or not for a long time.

Question 7 Explanation

The correct answer is listened. This is a positive Past Simple sentence, so the regular verb needs the -ed form. “Listen” becomes “listened” in the Past Simple. The sentence describes a completed classroom action in the past.

Question 8 Explanation

The correct answer is post. In Past Simple questions, did is followed by the base form of the main verb. The verb should not become “posted” after did. The question asks whether the action happened in the past.

Question 9 Explanation

The correct answer is played. The sentence describes an action that happened after school in the past. “Play” is a regular verb, and its Past Simple form is made by adding -ed. Because this is a positive sentence, the past form of the main verb is needed.

Question 10 Explanation

The correct answer is visit. In negative Past Simple sentences, didn’t is followed by the base verb. The word didn’t already gives the sentence its past meaning. Therefore, the main verb must stay in the base form.

Question 11 Explanation

The correct answer is cried. The verb “cry” is regular, but it has a spelling change in the Past Simple. When a regular verb ends in consonant + “y,” we usually change “y” to “i” and add -ed. That is why “cry” becomes “cried.”

Question 12 Explanation

The correct answer is answer. Past Simple questions use did plus the base form of the verb. Since did already marks the sentence as past, the main verb must not take -ed. The sentence asks if he answered the question correctly in the past.

Question 13 Explanation

The correct answer is rented. The phrase “last summer” shows a finished time in the past. “Rent” is a regular verb, so we add -ed to make the Past Simple form. The sentence describes a completed action from a past summer.

Question 14 Explanation

The correct answer is carry. In negative Past Simple sentences, the structure is didn’t plus the base verb. Although “carry” becomes “carried” in positive Past Simple sentences, it stays “carry” after didn’t. The auxiliary verb already shows the past meaning.

Question 15 Explanation

The correct answer is opened. This sentence describes two completed actions in the past: opening the door and walking into the room. “Open” is a regular verb, so its Past Simple form is made by adding -ed. Because the sentence is positive, the Past Simple form is required.