问题描述：
RT.
1.-let's see if the baseball game has started yet.
-started?it must be clear who( )by now.
A.is winning B.wins C.has won D.would win
2.-what's the matter with you?
-( )the window,my finger was cut unexpectedlly.
A.cleaning B.to clean C.while cleaning D.while i was cleaning
3.people( )the meeting were scientists.
A.were present at B.who are present at C.present to D.present at
答案是ADD
第一题为什么要用进行时态?第二题为什么C错的?第三题选B可不可以?
请大神指教.叩谢.
1.-let's see if the baseball game has started yet.
-started?it must be clear who( )by now.
A.is winning B.wins C.has won D.would win
2.-what's the matter with you?
-( )the window,my finger was cut unexpectedlly.
A.cleaning B.to clean C.while cleaning D.while i was cleaning
3.people( )the meeting were scientists.
A.were present at B.who are present at C.present to D.present at
答案是ADD
第一题为什么要用进行时态?第二题为什么C错的?第三题选B可不可以?
请大神指教.叩谢.
问题解答：
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