Gateway A2 Unit 3 Grammar

The correct answer is "can't". In this context, it means that Mike is unable to speak at the moment because he is busy doing his homework. The phrase "doesn't have to" would imply that Mike is not obligated to speak to the person, but it does not convey the same sense of him being occupied with another task.

The question is asking if it is possible or allowed for the person to come swimming with the group after school. The word "can" is used to indicate ability or permission, so the correct answer is "can."

The phrase "have to" indicates a necessity or obligation to perform a certain action. In this context, it implies that laying the table before dinner is a mandatory task for the speaker. Using "can" would suggest that laying the table is optional or that the speaker has the ability to choose whether or not to do it. Therefore, "have to" is the correct answer as it aligns with the idea of a required action.

The correct answer is "mustn’t" because it indicates that speaking Spanish in class is prohibited or not allowed. This implies that there is a rule or expectation that students should only speak English in class. On the other hand, "don’t have to" implies that there is no obligation or requirement to speak Spanish, but it does not necessarily mean that it is not allowed.

The correct answer is "don't have to" because it indicates that there is no obligation or necessity to wait for Brian today. It implies that Brian is not required to be present or that there are no specific instructions or requirements for him to be there. The use of "don't have to" suggests that waiting for Brian is optional and not mandatory.

Jack's running very fast but I don't think he can win. Don't run! You must walk slowly to your next lesson when you're in school. You must climb carefully. You don't want to fall. I'm learning to ski, but I'm not very good. I ski very badly. My sister is a brilliant dancer. She dances very well.

The given answer correctly identifies and corrects the mistakes in each sentence. In sentence 1, "don't can" is incorrect and should be replaced with "can't." In sentence 2, "don't have to" suggests that there is no obligation to be late, which is incorrect. It should be replaced with "mustn't be late" to indicate that being late is not allowed. Sentence 3 is correct as it is. In sentence 4, "wait patient" is incorrect and should be replaced with "wait patiently" to indicate the correct manner of waiting. In sentence 5, "mustn't remember" suggests that remembering is not allowed, which is incorrect. It should be replaced with "must remember" to indicate the necessity of remembering the skates.