All the following sentences indicate a subjunctive mood EXCEPT

A．Jack wishes that he had studied business in university.

B．I think it"s high time that she made up her mind.

C．I had finished my homework when he called me.

D．Take your raincoat in case it rain.

Observations of cetaceans in the wild have provided some insights on their learning abilities. Several bottlenose dolphins off western Australia, for instance, have been observed carrying large cone-shaped sponges over their beaks. They supposedly use the sponges for protection against stingrays and other hazards on the bottom as they search for fish to eat. This is the first record of the use of tools among wild cetaceans.

What does the author conclude about the intelligence of cetaceans?

A．It is not appropriate to judge cetacean intelligence in human terms.

B．Cetaceans probably possess a mental sophistication that is as complex as that of humans.

C．Although cetaceans may appear to be intelligent, they have fewer problem-solving skills than most animals,

D．Their ability to learn American Sign Language indicates that cetaceans have a high level of intelligence.

Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. Write your answer choices in the spaces where they belong. You can either write the letter of your answer choice or you can copy the sentence. A variety of chipmunk species inhabit western North America. Answer Choices [A]Ecological variation of the Sierra Nevada resulted in the differentiation of chipmunk species. [B]Only one species of chipmunk inhabits eastern North America. [C]Although chipmunk species of the Sierra Nevada have the ability to live at various elevations, each species inhabits a specifically restricted one. [D]Chipmunks aggressively defend their habitats from invasion by other species of chipmunks. [E]Experimental studies indicate that sagebrush chipmunks live in the desert because of their physiological requirements. [F]The most aggressive of the chipmunk species is the lodgepole chipmunk.

The author asks the question "Are they really that smart?" for which of the following reasons?

A．To question the notion that humans are the most intelligent of animals

B．To introduce the discussion of intelligence that follows

C．To explain why dolphins, killer whales, and pilot whales can learn tricks

D．To emphasize the ways that dolphins can help the military

The phrase "by virtue of" in the passage is closest in meaning to

A．in spite of

B．because of

C．unconcerned about

D．with attention to