Where are the pieces of this puzzle? (The subject is not this puzzle, but these are the pieces of this puzzle, so the theme is plural) Rule-19 If the subjects who join (either or not) are of different people, the verb corresponds personally and corresponds to the noun that is closest to it. In addition, it is necessary to concern the plural substrate closest to the verb. The company is the subject, so the correct pronoun should be “That.” 15) “to” omit 🔹 indication – “Better” is used to give advice or tell people what to do. Meaning is the present or the future, not the past. Always use “had” before you don`t have. With better, we use the naked infinitiv. 16) No error 17) The sentence is perfectly correct. 🔹- help, offer, let go, do are causal verbs, because they provoke something else. When used in the active voice, they are followed (except let) by the naked infinitive (v1).