问题
选择题
The model for Leonardo da Vinci's Mona Lisa is believed ____ in the convent (修道院) at the age of 63 in 1542. [ ]
A. to die
B. to have died
C. dying
D. having died
答案
答案：B
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The model for Leonardo da Vinci's Mona Lisa is believed ____ in the convent (修道院) at the age of 63 in 1542. [ ]
A. to die
B. to have died
C. dying
D. having died
答案：B