1·During the SALL course I get many problems, such as common prepositional error and mang other problems.
在自主学习过程中我得到了很多的问题，如常见的介词错误和许多其他问题。
2·Four phrasal categories are commonly recognized and discussed, namely, noun phrase (NP), verb phrase (VP), prepositional phrase (PP), and adjective phrase (AP).
通常讨论的词组类型有四种，分别是：名词词组，动词词组，介词词组和形容词词组。
3·What is the function of the prepositional phrase?
这个介词短语的作用是什么？
4·In one sentence, at most one prepositional phrase is allowed.
在一个句子里，最多只能有一个介词短语。
5·Negative polarity terms in the English language are composed of noun phrases, adverb phrases, prepositional phrases and adjectives with the meaning of micro-quantity.
英语中的否定极性词语大多由表示微量含义的名词(短语)、副词(短语)、介词短语和形容词等组成。