Correct Answer: B

Rationale: The word 'quickly' is used incorrectly in the sentence. The correct word that should be used here is 'speedily.' 'Quickly' is an adverb that describes the speed at which an action is performed. However, in this context, the sentence needs an adverb that conveys doing something in a hurried or rushed manner, which is 'speedily.' Therefore, the sentence should read as: 'If you calculate too speedily, you may possibly fail to get the right answer.' The other choices ('calculate,' 'possibly,' 'right') are used appropriately in the sentence and do not need to be changed.

Correct Answer: A

Rationale: The word 'because' indicates the reason or cause for something. In this context, it logically connects the meteorologist's forecast of rain with Sheila bringing her umbrella to work. The conjunction 'because' explains the relationship between the rain forecast and Sheila's action of bringing an umbrella, making it the most suitable word for the sentence. Choices B, C, and D do not fit the context as they do not provide a logical reason for Sheila's action.

Correct Answer: B

Rationale: A comma is needed to separate the items being listed (notebook and small handmade coffee mug) in the sentence. This punctuation mark helps to clearly indicate the individual components being mentioned in a list. In this case, a comma is used in a series (also known as a list) to separate the items listed, ensuring clarity and proper punctuation structure. The other choices are incorrect because a period would create two separate sentences, a colon is used to introduce a list or an explanation (neither of which is the case here), and a hyphen is used to join words or parts of words.

Correct Answer: B

Rationale: The word 'stationary' in the sentence should be spelled as 'stationary.' 'Stationery' refers to writing paper and other office supplies, while 'stationary' means not moving or still. In this context, the correct word should be 'stationary' to describe the chairs that are not moving.

Correct Answer: D

Rationale: The verb 'meet' is the correct option in this context as it completes the sentence structure 'waiting to meet with the doctor' in a grammatically correct way. The sentence requires an infinitive verb form to convey the intended meaning of Miguel and I waiting to have a meeting or appointment with the doctor. Choices A, B, and C are incorrect because 'be met' changes the meaning, 'meeting' is a gerund form which doesn't fit the sentence structure, and 'met' is a past tense form that doesn't match the present tense context of the sentence.