问题
选择题
—What has made him upset recently?
—____alone to face a troublesome milk case.
A．Left
B．Being left
C．Having left
D．To leave
答案
答案：B
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—What has made him upset recently?
—____alone to face a troublesome milk case.
A．Left
B．Being left
C．Having left
D．To leave
答案：B