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Anonymous Posted 18 years ago
Grammar

a question about modal verbs

0—Why does Sara know so much about Angkor Wat?02br
00--She____have been there,or... 02br
02br
00A. must B. may02br
02br
00I am confused .... help0-
  

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3 Answers
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0Hello.02br
02br
00Either "must" or "may" would be fine.02br
02br
00A: How does Sara know so much about Angkor Wat?02br
00B: She must have lived in Cambodia, or she must have studied a lot about Angkor Wat.0-
0
0With 01i00have been02i00: 02br
02br
00must: very probably, say 90%02br
00may: probably, say 50"%02br
00might: less likely, say 30% 0-
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0She may have been there = It is possible that she was there / that she has been there.02br
00She must have been there = The only possible conclusion is that she was there / that she has been there.02br
00If you say that she may have been there, you're offering a possible explanation.02br
00If you say that she must have been there, you're drawing a conclusion;

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