I'd like the colour, but I’m afraid it’s ___expensive.

---Laura calls on her teacher pretty ____, doesn’t she? ---Yes. At least three times every week.

Food safety is ________ important, so our government spares no efforts to prevent food being polluted.

Hardly had Sabrina finished her words when Albert said___  ，“Don’t be so mean，’’ pointing a finger of warning at her.

In the bubble years, lending standards slipped ______,allowing   many people to put far too much of their income into paying for their housing.