Don't keep your mouth ___ if you want to improve your spoken English.

After supper she would sit down by the fire, sometimes for ____ an hour, thinking of her young and happy days.

I’ve been writing this report ____for the last two weeks ,but it has to be handed it tomorrow.

It was a(n) _____situation, because the restaurant was too expensive for us but we didn't want to just leave.

Henry's news report covering the conference was so _____ that nothing had been omitted.