填空题

The passage contains 10 errors. Each indicated line contains a maximum of ONE error. In each case, only ONE word is involved. You should proofread the passage and correct it in the following way.
For a wrong word underline the wrong word and write the correct one in the
blank provided at the end of the line.
For a missing word mark the position of the missing word with a " A " sign
and write the word you believe to be missing in the blank
provided at the end of the line.
For an unnecessary word cross the unnecessary word with a slash "/" and put the
word in the blank provided at the end of the line.
Since the 1950s, particularly developing from the work of the
American linguist Noam Chomsky, there have attempts to produce a 1.______
particular type of grammar which would have a very explicit system of rules
specializing what combinations of basic elements would result in 2.______
well-forming sentences. This explicit system of rules, it was proposed, 3.______
would have much at common with the types of rules found in 4.______
the mathematics. Indeed, a definitive early statement in Chomsky’s first 5.______
major work betrays this essential mathematical view of language: "I will 6.______
consider a language to be a set (finite or infinite) of sentences. "
This mathematical point of view helps to explain the meaning of
the term "generative", which is used to describe this type of grammar, If
you have an algebraic expression like 3x +2y, and you can give x and y
the value of each whole number, then that simple algebraic expression 7.______
might generate an endless set of values, by following the simple rules 8.______
of arithmetic. If the sentences of a language can be seen as a compared 9.______
set, there must be a set of explicit rules that yield in those sentences. Such a 10.______
set of explicit rules is a "generative grammar".