Their flight from Miami to New York was put off ................... the heavy fog.
They had …………. left their house when you came.
They have many pets, ………………. three cats.
It was raining so ................ that we had to take our umbrellas.
My office is on the 19th .................. of that tall building.
I’m afraid there are no seats left. Every seat is ..................
He doesn’t feel like ........................ .
Idioms have to be learnt ................. heart.