Correct Answer: D

Rationale: The word 'laying' is used incorrectly in the sentence. The correct word should be 'laying' when referring to the action of setting up a brick foundation. Therefore, the correct choice is 'D: laying.' In this context, 'lying' would imply being in a horizontal position, which is not the intended meaning. Choices A, B, and C are not incorrect in the sentence and do not affect the clarity or correctness of the statement.

Correct Answer: A

Rationale: In this sentence, the correct choice is 'swam,' which is the past tense of 'swim.' Therefore, 'swam' correctly completes the sentence: 'Theo was in great shape; he swam all the way back to the pier.' 'Swimmed' is not a valid past tense form of 'swim,' 'swum' is the past participle form and doesn't fit the context, and 'swim' is the base form of the verb and is not suitable in this case.

Correct Answer: D

Rationale: The sentence is in the past tense, indicating that the action occurred before the present moment. 'Began' is the correct past tense form of the verb 'begin' in this context. It shows that Stan started reviewing his class notes in the past. Choice A ('begins') is incorrect as it represents present tense. Choice B ('begun') is incorrect as it is the past participle form and does not fit the sentence structure. Choice C ('begin') is incorrect as it is the base form of the verb and not appropriate for the past tense context of the sentence.

Correct Answer: C

Rationale: The word 'recipe' in the sentence should be 'receipt.' In this context, 'receipt' refers to a proof of payment, whereas 'recipe' is a set of instructions for preparing a dish. Therefore, 'receipt' is the correct word to use in the given sentence. Choice A, 'ringing,' is used correctly as it means the process of totaling the cost of the items. Choice B, 'cashier,' is also used correctly to refer to the person handling the transaction. Choice D, 'change,' is appropriately used to indicate the money returned after payment.

Correct Answer: A

Rationale: The correct answer is 'Is.' In this sentence, the subject 'picking up groceries' is singular, so it should be followed by the singular form of the verb 'to be,' which is 'is.' The verb should agree with the subject in number. 'Am' is incorrect as it is the first person singular form, 'Is it' creates an unnecessary question structure, and 'Are' is plural, not matching the singular subject. Therefore, 'Is' is needed to make the sentence grammatically correct.