It was the boy _____ had been in prison _____ stole the money.

If I ＿＿you . I＿＿study harder.

Their newhouse by the river

Only when he failed the exam ________ that he didn’t work hard. (原创)

Tom is always making so many mistakes in hisEnglish exercises! — Yeah. If he ________ more careful, he________ fewer mistakes.