It was ___________________（直到问题解决）that he left the office

It was ___________________（直到问题解决）that he left the office he left the office（ ）he come He left the office,---------. 直到他回来我才离开 it was __ __ he came back __i left ____not in his office.A .It was happened that he was B .It h ____thesewords,he left the office quietly It was（ ）that he moved out of the remote Can it be in the office you left you umbrella.A where B that it was not until he got to his office that he remembered lea he left the office（）once,as soon as he heard （）the accident. He was sure that he______his wallet in the office 这里的that 是什 求答案阿英语完成句子：1.It was ＿（直到周六）he began to prepare for the exam.