问题
选择题
— I saw Dave in the lift this morning.
— Really? He _______ around here for a long time.
A．won’t be seen
B．wasn’t seen
C．hadn’t been seen
D．hasn’t been seen
答案
答案：C
答句中Dave没有被看到没有持续到双方正在对话的现在，而是今天上午，所以用过去完成时态