They ____ have prepared for the meeting more carefully.— But they didn’t. What a pity![ ]

The old black woman sat under the pine tree, her grandsons, ____ around her, ____ to an old story.

We want such materials ________ can bear high temperature and pressure.

____________do you go to the cinema—Once a month.

Junk messaging has been a headache for years, ＿＿the action taken by the authori-ties has not yet produced the results expected