问题
选择题
Happy birthday, Alice? So you have _______ twenty-one already?
A.become
B.turned
C.grown
D.passed
答案
答案:B
考查系动词的用法。句意“生日快乐,爱丽丝!你现在已经21岁了啊?”become“变得,成为”;turn指颜色,年龄的改变;grow后接形容词或不定式;pass“经过,通过”。故选B。