11) Anne my questions. (not/to answer) 12) they tomatoes in this shop? (to sell)

13) This girl trousers at school. (not/to wear)

14) Mr Barker Phisics? (to teach)

15) The guinea pigs under the desk. (not/to hide)

16) Ken often the school bus? (to miss)

17) The poster on the wall anymore. (not/to hang)

18) for the tickets? (you/to pay)

19) The boys stones. (not/to throw)

20) the bells of your church still ? (to ring

11) Anne doesn't answer my questions.
To form a negative sentence, we use the word "do not" or "does not" before the verb. In this case, we use "does not" because the subject "Anne" is a singular third-person pronoun.

12) Do they sell tomatoes in this shop?
To form a question, we use the auxiliary verb "do" or "does" at the beginning of the sentence, followed by the subject and the main verb. In this case, since the subject "they" is plural, we use "do" as the auxiliary verb.

13) This girl doesn't wear trousers at school.
Similar to sentence 11, we use "does not" before the verb to form a negative sentence. In this case, we use the verb "wear" to refer to the action of putting on trousers.

14) Does Mr. Barker teach Physics?
Again, we use the auxiliary verb "does" at the beginning of the sentence to form a question. Since the subject "Mr. Barker" is a singular third-person pronoun, we use "does" to indicate this.

15) The guinea pigs don't hide under the desk.
To form a negative sentence, we use "do not" before the verb. In this case, we use the verb "hide" to refer to the action of staying concealed beneath the desk.

16) Does Ken often miss the school bus?
Similar to sentence 14, we use the auxiliary verb "does" at the beginning of the sentence to form a question. Since the subject "Ken" is a singular third-person pronoun, we use "does" to indicate this.

17) The poster doesn't hang on the wall anymore.
To form a negative sentence, we use "do not" before the verb. In this case, we use the verb "hang" to refer to the action of being displayed on the wall.

18) Do you pay for the tickets?
To form a question, we use the auxiliary verb "do" followed by the subject and the main verb. In this case, the subject is "you," which is a second-person pronoun.

19) The boys don't throw stones.
To form a negative sentence, we use "do not" before the verb. In this case, we use the verb "throw" to refer to the action of tossing stones.

20) Do the bells of your church still ring?
Similar to sentence 18, we use the auxiliary verb "do" at the beginning of the sentence to form a question. In this case, the subject "the bells of your church" is plural, so we use "do" as the auxiliary verb.