他冲进房间时喘不过气来。

He ___was ___out ___of ___breath when he burst into the room.

走完整条商业街后，你会喘不过气来。

You will ___be ___out ___of ___breath after completing the whole High Street.

她爬楼梯后喘不过气来。

She ___is ___out ___of ___breath after climbing stairs.