这个孩子三岁就会写字了. The child was ---- ---- write when he was three

这个孩子三岁就会写字了. The child was ____ ____ write when he was three years old.
一空一词.
这个孩子三岁就会写字了.
The child was ____ ____ write when he was three years old.
我们最好大声跟她说话.因为他完全听不见.
We had better speak to him in a loud voice because he is ____ ____ .
昨晚火警警报突然想起来了.
The fire alarm _____ ____ last night.
我出生在一个寒冷的冬季的早晨.
I_____ ____ on a cold winter morning.
解释句子
why not 用什么替代
wsed to 用什么替代
provide.for用什么替代
disappeared用什么替代