[語文] PP2-no.173

[ims0bad10 (gangsta)]

The widely accepted big-bang theory holds "that the university began in an
expolsive instant 10 to 20 billion years ago and has been expanding ever
since."

A.that the university began in an expolsive instant 10 to 20 billion years ago
  and has been expanding ever since.

B.that the had begun in an explosive instant 10 to 20 billion years ago and
  had been expanding.

C.that the begining of the universe was an explosive instant 10 to 20 billion
  years ago that has expanded

D.the  begining of the universe to have been an explosive instant 10 to 20
  billion years aog that is expanding

E.the universe to have begun in an explosive instant 10 to 20 billion years
  ago and has been expanding


答案是A 但是這樣不是沒有平行嗎 有點搞不懂

麻煩各位牛人 給小弟解答


--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 163.25.118.134
→ criesinvain:bb理論是事實用'現在',since說明要用'完成'    淺見
→ criesinvain:充分邏輯或時間關係下不同時態V可並列
推 tootoobenee:我都是以時間點是否重疊到來判定時態並列關係，這題
→ tootoobenee:過去式和完成進行式在過去的時間點是有重疊到的。
→ pentimento:上一行的判斷是指只有這樣才能平行嗎？不重疊呢？