It is ______ to rain this afternoon.

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

She didn’t run off the stage. __________, she finished the performance with a smile on her face.

Recent studies have discovered that fathers uniquely contribute to the development of their children, _____ in low income families.

Mr. Lin’s comments were very difficult to follow because they were ______related to the topic under discussion.