Organ transplantation is a medical procedurein which anorganis removed from one body and placed in the body of a recipient to replace a damaged or missing organ. In this sentence, “in which anorganis removed from one body and placed in the body of a recipient to replace a damaged or missing organ”is ____.

A. a complement clause
B. a relative clause
C. an adjunct clause
D. an adverbial clause

[音频]Recursiveness mainly means that a phrasal constituent can be embedded within another constituent having the same category, but it has become an umbrella termforsuch important linguistic phenomena as coordination and ____, conjoining and ____, ____ and paratactic. All these are means to extend sentences.

A. subordination
B. subordinate
C. embedding
D. hypotactic

The three basic types of subordinate clause are complement, adjunct (or ____) and relative clauses.

EMBEDDING refers to the means by which one clause is included in the sentence(that is,main clause) in syntactic subordination.

A. 对
B. 错