Complete the sentences with the Present Simple or Present Continuous form of the verb in brackets.

Here are the completed sentences with explanations: 1. **We usually have lunch at two o'clock.** * **Explanation:** This sentence describes a habitual action, so we use the Present Simple tense. The verb "have" remains in its base form because the subject is "we". 2. **Listen! Is the phone ringing?** * **Explanation:** The word "Listen!" indicates that something is happening right now. Therefore, we use the Present Continuous tense (is + verb-ing). The question form is created by inverting the auxiliary verb "is" and the subject "the phone". 3. **I am sitting in the park today.** * **Explanation:** The word "today" indicates that something is happening right now. Therefore, we use the Present Continuous tense (am + verb-ing). 4. **Do people put trees in their houses at Christmas?** * **Explanation:** This sentence asks about a general custom, so we use the Present Simple tense. For the question form with plural subjects like "people," we use the auxiliary verb "do." The main verb "put" remains in its base form. 5. **My brother always watches tennis on TV.** * **Explanation:** The word "always" indicates a habit or routine, so we use the Present Simple tense. Because the subject is "my brother" (singular), we add "-es" to the verb "watch". 6. **My friend does not visit me every day.** * **Explanation:** The phrase "every day" suggests a routine, so we use the Present Simple tense. The negative form is made with "does not" (or "doesn't") + the base form of the verb "visit" as the subject is "My friend" (singular). 7. **The boys are studying at the moment so please don't talk to them.** * **Explanation:** The phrase "at the moment" indicates that the action is happening right now. Thus, we use the Present Continuous tense (are + verb-ing). The subject is "The boys" (plural). 8. **Bill is not playing outside now.** * **Explanation:** The word "now" indicates that the action is happening at the moment of speaking. Therefore, we use the Present Continuous tense (is + not + verb-ing). The subject is "Bill" (singular).