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
问题描述:
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
答
It is three weeks since I heard from him last