问题
选择题
He said that he would write to us but so far we ___________ from him.
A．didn’t hear
B．haven’t heard
C．shouldn’t have heard
D．hadn’t heard
答案
答案：B
考查时态。根据题中so far 到目前为止，可知应用现在完成时态，句意：他说他会给我们写信但是到现在为止我们还没有收到他的来信。所以选B。