(1) Sentence structure: e present selection consIstS O two sentences of which the first is a simple sentence while the second is a complex sentence, composed of an adverbial clause of time a main clause and two attributive clauses one embedded in the middle of the main clause and the other at the end of it(1) Sentence structure： • The present selection consists of two sentences, of which the first is a simple sentence while the second is a complex sentence, composed of an adverbial clause of time, a main clause and two attributive clauses, one embedded in the middle of the main clause and the other at the end of it