It was the chief, you saw, ..................?

here are the answers to the questions:

49) The statement "It was the chief you saw" uses the past tense verb "was" and the subject "it". The correct tag question should be negative and match the tense and subject.
The correct option is D.

50) The phrase "in fact" is used here to emphasize that the fees were genuinely too high.
The correct option is C.

51) "Seriously injured" implies a severe accident. "Ghastly" means dreadful or horrible, which fits the context of a serious injury.
The correct option is C.

52) The correlative conjunction "neither...nor" is used to connect two negative statements.
The correct option is A.

53) "However much he tried" is the correct structure to express a strong contrast between effort and outcome.
The correct option is A.

54) The idiom "no option but to" means there is no other choice than to perform the action.
The correct option is C.

55) "Ground pepper" refers to pepper that has been processed by grinding.
The correct option is A.

56) To "ran off with" money means to steal it and leave.
The correct option is B.

57) "Theirs" is the correct possessive pronoun for "belonging to them". Possessive pronouns do not use apostrophes.
The correct option is C.

58) "Who" is the correct relative pronoun to refer to a person (the boy) as the subject of the clause "stole the money".
The correct option is B.

59) "My telling you" uses the gerund form "telling" as a noun, referring to the act of informing someone.
The correct option is C.

60) "Could not have done otherwise" is an idiom meaning there was no other possible course of action.
The correct option is A.

61) "One another" is a reciprocal pronoun used when referring to more than two people interacting with each other.
The correct option is C.

62) To "come into money" is an idiom meaning to inherit money.
The correct option is C.

63) "In two weeks" is the correct way to express a duration of time for an event to occur in the future.
The correct option is C.

64) In the phrase "The President, along with his entourage," "The President" is the singular subject. Therefore, the verb must be singular. "Is attending" is the correct singular present continuous tense for a planned event.
The correct option is C.