______that the road was under repair ahead, he had to drive back.
---You don’t often see them, do you? ---No, I see ______of them.
He is clever and hard-working, so he has _____ reason to succeed in the exam.
It’s ______, as I trust you so much.
One of the students hasn’t prepared ____ lessons very well.
Either the boy or his sister must have _____ dinner here.