標題範例：Writing > Identifying Sentence Errors
The following sentence contains either a single error or no error at all. If the sentence contains an error, select the one underlined part that must be changed to make the sentence correct. If the sentence contains no error, select choice E.
Among the (A)earliest telescopes (B)were Galilean telescopes, modeled after the simple instruments (C)built by Galileo, the first person (D)having used telescopes to study the stars and planets. (E)No error
(A)
(B)
(C)
(D)
(E)
謎底：D
【剖析】
The error in this sentence occurs at (D), where there is an inappropriate verb form. The verb phrase “to have used” is needed to clearly express what Galileo was the first person to do.
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