填连词,使主从复合句完整Someone called me up in the middle of the night,but he hung up ( )I could answer the phone.

问题描述:

填连词,使主从复合句完整
Someone called me up in the middle of the night,but he hung up ( )I could answer the phone.

before 还未来得及

before
半夜有人打我电话,但是我还没来得及回答就挂断了