It __ be the vocabulary that caused you the problem in the exercise because you know a lot of words.
He wanted the girl he was looking forwardstay with him.
---Anything new in the new regulations? ---They will beto us all.
I got up early this morning, but I ________ so because I was not on duty today.
It’s dangerous to have the fire _______ at home all night long.
—Are you satisfied with this hotel ? —Not a little. We can’t have _________ .