Excuse me I________I was blocking your way.

He’s already left here. You ____ have come here half an hour earlier.

Jack wasn ‘ t saying anything but the teacher smiled at him_____ he had done something very clever[ ]

下列句子中，没有语病的一项是(　　)

—I remember I left my laptop in the study last night. Why ________ here?—Oh, I thought you might need it so I brought it here for you.[ ]