下列各句中，加点成语使用正确的一项是（ ）

ld you please have my car ready today— Sure. The damage is not that serious, so it ______ be ready by 5:00 pm.

Misunderstandings_______ from short ofcommunication, unless______ properly, may lead to serious problems.

Mary hoped that her father would be as easy___________ as her mother, who always liked perfume.

I wondered ______ they had raised so much money ontheir own to help youngsters in need.