I wonder why Mr Green hasn’t showed up at the meeting yet.　　—I’m not sure, but he _______ in a traffic jam driving here.

Life is limited. We had better _______ it on valuable things.—Good idea. And we should spend more time ______ our family members.

The radio says the weather will get _______later in the day, so we have to stay at home.

21． More than one high official_____by the police since the mayor warshot dead.

下列各句中，没有语病、句意明确的一项是（ ）