中国农业银行
单选题 I'm tired out. Iall afternoon and I don't seem to have finished anything.
A． shopped
B． have shopped
C． had shopped
D． have been shopping
参考答案：D进入在线模考
【答案】D。解析：根据all afternoon，可知本题表示持续性动作或者状态，故用进行时，因此选D，表示过去已经开始且持续到现在并有一定影响的动作。
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