Weather _______, we ’ll go out for a walk.
正确答案： B
本题解析：
本题中没有连词，它不是复合句，也不是并列句。 句中使用了逗号，且 we 小写，可知其不是两个简单句。能够这样使用的只有独立主格或 with 的复合结构。据此判断，本句中使用的是独立结构， 其结构为：名词 +分词。 由于 permit 在这里翻译为“天气允许” ，表主动，应用现在分词，故选 B。
Empirical studies show that the process of SLA is a process of constructing and modifying rules of communication.
Research findings have shown that language processing centers are situated in a single area of the left hemisphere.
From the sociolinguistic perspective, a speech variety is no more than a dialectal variety of a language.
The division of English into Old English, Middle English, and Modern English is nonconventional and not arbitrary.
Searle's classification of illocutionary acts is based on the classification of performative verbs.
According to the "principles-and-parameters" theory, "principles" refer to highly abstract properties of grammar which are applied to language in general and which generate phrases and at the same time restrain the power of Move a, while "parameters" allow general principles to operate in certain restricted ways, according to which particular grammars of natural languages vary.
Well-arranged sentences are considered grammatical sentences that are formed following a set of syntactic rules.