IV. Paraphrase the following sentences in English. (20 points)

　　1. It's about as likely that an ape will prove to have a language ability as that there is an island somewhere with a species of flightless birds waiting for human beings to teach them to fly.

　　2. The accession of English to its global position was anything but a planned development, although proponents of theories of cultural imperialism might not entirely agree with such a statement.

　　3. To a degree impossible to exaggerate, the cause of American independence was aided by the clumsiness of Britain's wartime leadership, both civilian and military.

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