問題詳情
79. _________ through a telescope, Venus appears to go through changes in size and shape.
(A)It is seen
(B) Seeing
(C) When seen
(D)It has seen
參考答案
答案：C
難度：困難0.206897
統計：A(17),B(65),C(24),D(10),E(0)
用户評論
【hedysue】評論
副詞子句簡化成分詞構句原句為 When Venus has been seen through ......因為前後主詞( Venus 金星)相同變為 When seen through ...... 或 Seen through......