--- We expected you yesterday． --- I'm sorry, I you to say that I couldn't be he
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--- We expected you yesterday．
--- I'm sorry, I you to say that I couldn't be here until today．(原创)
A．must have called B．would be calling
C．could have been calling D．should have called
试题答案
D考查情态动词的用法。此处should+have done表示：应该做的事没做。