问题
选择题
His girlfriend ＿＿＿＿＿a singer.
A．has turned
B．grew
C．has become
D．turned
答案
答案：C
become作系动词，表示“变成”，其后的单数可数名词前要加a或an.
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His girlfriend ＿＿＿＿＿a singer.
A．has turned
B．grew
C．has become
D．turned
答案：C
become作系动词，表示“变成”，其后的单数可数名词前要加a或an.