Answer :
For question 14, the correct answer is C. Located.
The sentence states that "the company's guesthouses are very convenient", which suggests that the guesthouses are located near both the company's new plant and headquarters. The appropriate word to use here is "located", in the past participle form.
For question 15, the sentence is incomplete, so I cannot provide a complete answer. The missing information would be needed to determine the most appropriate word to fill in the blank.
In general, when a sentence contains a blank to be filled in, you should look at the context of the sentence and the part of speech required to complete the thought. This will help you select the correct word from the options provided.
