几道关于语言学的题目，找资料也没找到合适的答案，请高手帮忙解答一下，万分感谢啊，哪怕解答一道也好啊
1. Consider the following sentence, and then, answer questions (1) to (3). (20 points)
Pat found a book on Wall Street.
(1) Is this sentence ambiguous? If so, describe the ambiguity briefly in your own words.
(2) Draw the constituent structure trees for each possible interpretation.
(3) What can be known about tree diagrams from (1) and (2)?
26. Linguistics is the scientific study of language, which is a complicated entity with many layers and facets. Therefore, there are a number of branches of linguistics such as phonology, morphology, syntax, etc. Please state briefly how different branches of linguistic studies are connected together. (15 points)
3Below are some data from Twi, a language spoken in Ghana. The phonemic representations of the verbs are given, followed by the phonetic transcriptions of these verbs in affirmative and negative constructions.
1) /gu/ “pour”, [o gu] “he pours”, [oηηu] “he doesn’t pour”
2) /kum/ “kill”, [o kum] “he kills”, [o ηkum] “he doesn’t kill”
3) /pue/ “appear”, [o pue] “he appears”, [o mpue] “he doesn’t appear”
4) /bu/ “break”, [o bu] “he breaks”, [o mmu] “he doesn’t break”
5) /di/ “eat”, [o di] “he eats”, [o nni “he doesn’t eat”
6) /ti/ “scratch”, [o ti] “he scratches”, [o nti] “he doesn’t scratch”
What are the rules that change the phonemic forms of the verbs to the phonetic forms, where the phonetic forms differ form the phonemic forms?
急！急！急！