.The river _______ in the late summer, so we could go across it easily.

Military helicopters dropped food and medicine to the earthquake survivors that remained in remote mountain villages.

Simon was _____ why many of his friends didn’t turn up at his birthday party. 

Every time Gina catches her employees _____ time, she reminds them that time is money.

In my opinion, what he told us just now about the affair simply doesn’t make any ﹍﹍ .