问题补充:
– Shall we go out for lunch?
– Don’t disturb me. I the letters all morning and six so far.
A. write; wrote
B. wrote; have written
C. was writing; wrote
D. have been writing; have written
答案:
A. write; wrote
B. wrote; have written
C. was writing; wrote
(答案→)D. have been writing; have written
解析:考查时态:句意:--我们出去吃午饭怎样?--别打扰我。我一个早上都在写信,已经写了六个小时了。第一空是强调写信这个动作过去到现在一直在进行,用现在完成进行时,第二空强调结果,so far和现在完成时连用。选D。