certify, rectify, testify, verify

　　這是一組形近易混詞。

　　certify v.證明，聲稱是真的。

　　He certified it was his wifes handwriting.他證明那是他妻子的手跡。

　　rectify v.改正，糾正;整頓。

　　He rectified the mistake in the contract by changing its wording.他通過改變措辭糾正了合同里的錯。

　　testify v. 宣誓作證;表明。

　　He is the only person who can testify in this case, because the other witnesses were killed mysteriously.由于其他的證人已經被神秘地殺害，他成為這件案例中唯一可以作證的人。

　　verify v. 證實或核實。

　　I verified the stores address by calling to check it.我打電話詢問，以核實商店的地址。