– Shall we go out for lunch?– Don’t disturb me. I ______ the letters all morning

题干

– 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

上一题下一题 0.64难度单项选择更新时间:2013-05-08 11:16:40

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