The street in front of our house was narrow before .(保持愿意)The street in front of our house ____ ____be narrow .

问题描述:

The street in front of our house was narrow before .(保持愿意)
The street in front of our house ____ ____be narrow .

used to (过去是……的)

used to be 过去常常

The street in front of our house _used_ __to__be narrow .

used to