That’s a tall building, and there are ________ rooms on ________ floor.

you read the book, you’d bettermake a mark ______ you have questions

You were mistaken ____Jane，she really wanted to help you.—I admit that I mistook her offer______ a threatAnyhow，I don’t like the way she acts

__ what I had previously thought, my new biology teacher turned out to be a rather interesting person.

We don’t have_______ salt at home. Could you go and get _______, please