問題詳情
13. Some astronomers have concluded ________ from outer space, such as the meteor, may havetraveled through the vast universe for thousands of years.
(A) that flying objects are
(B) flying objects that
(C) that flying objects
(D) objects are flying
參考答案
答案：C
難度：適中0.536585
統計：A(49),B(5),C(66),D(2),E(0)