Analysis of a sentence, text, or paragraph, requires attention to details, such as mood established through verbs, punctuation, and such.
1. In this question, the correct answer would be B: When bricking a building, masons must fit the bricks together; sometimes they slice bricks in half for a better fit. The reason for this is punctuation and the correct use of capital letters after certain punctuation, like semicolons and commas instead of colons.
2. Mood in texts is established through the use of verbs that express it. As such, if a verb expresses fact, it is considered as indicative or declarative. If the verb, on the other hand, expresses command, we say that it is establishing an imperative mood. If it is questioning, then, the interrogative mood, and if conditional, then we call it the conditional mood and finally, if a wish, or a chance is expressed, then we call it the subjunctive mood. In this case, the use of the word "wished" expresses exactly that, a desire or a possibility, which means that the correct answer here is C: Subjunctive.
3. In this case, although the 4 types of present tenses are: present progressive, present simple, present perfect and present perfect progressive, the correct answer would be: A: Present Emphatic, which means it is in the simple present and it emphasises an action that is taking place repetitively throughout an established period.