在改写后的句子中填入适当的词,使其与原局意思相同或相近I have not got any letters from him for three weeks.It---- ---- ---- since I ---- ---- him last

在改写后的句子中填入适当的词,使其与原局意思相同或相近I have not got any letters from him for three weeks.It---- ---- ---- since I ---- ---- him last
在改写后的句子中填入适当的词,使其与原局意思相同或相近
I have not got any letters from him for three weeks.
It---- ---- ---- since I ---- ---- him last

在改写后的句子中填入适当的词,使其与原局意思相同或相近I have not got any letters from him for three weeks.It---- ---- ---- since I ---- ---- him last
It is three weeks since I heard from him last

It lasts three weeks since I heared from him.

was three weeks heared from

it last three weeks since i recieved from him.