Correct Answer: A

Rationale: The correct answer is 'A: hung up.' In this context, 'hung up' is the correct phrasal verb to indicate ending a phone call abruptly. The phrase 'hung up' means to abruptly end a phone call. The other choices do not fit the context. 'Picked' implies selecting something, 'held' means to grasp or support something, and 'held on' implies maintaining a grip or connection rather than ending the call.

Correct Answer: B

Rationale: The correct answer is B: 'A deficiency or lack of something.' The term 'deficit' refers to a shortage or inadequacy of something. Choice A is incorrect because a surplus means an excess, which is the opposite of a deficit. Choice C is incorrect as an abundance signifies a large quantity or more than enough of something. Choice D is incorrect as a stable amount does not convey the concept of a deficit.

Correct Answer: A

Rationale: Regulations refer to rules or directives established by authorities to govern conduct or actions. Therefore, the correct answer is A - 'Rules for Conduct.' Choice B, 'Official Standards,' is incorrect as regulations go beyond just setting standards to include specific rules for behavior. Choice C, 'Personal Guidelines,' is incorrect as regulations are not individualized but are generally applicable rules. Choice D, 'Suggestions,' is incorrect as regulations are mandatory and carry legal weight, unlike suggestions which are optional and not binding.

Correct Answer: A

Rationale: The correct answer is 'A: hung up.' In this context, 'hung up' is the correct phrasal verb to indicate ending a phone call abruptly. The phrase 'hung up' means to abruptly end a phone call. The other choices do not fit the context. 'Picked' implies selecting something, 'held' means to grasp or support something, and 'held on' implies maintaining a grip or connection rather than ending the call.

Correct Answer: D

Rationale: Correct answer: Another word for AFFECT is INFLUENCE. Affect and influence are synonymous when used in the context of producing an effect on something or someone. Choice A, 'Reduce,' is incorrect as it means to make something smaller or lessen its quantity. Choice B, 'Contaminate,' is incorrect as it means to make something impure or harmful. Choice C, 'Eliminate,' is incorrect as it means to completely remove or get rid of something.