her parents promised （） her a computer if she got good grades.A、_英语解答

her parents promised （） her a computer if she got good grades.A、buying
her parents promised （） her a computer if she got good grades.
A、buying B、to buy C、bought D、will buy

人气：333 ℃　时间：2019-09-23 00:22:53

解答

选B.
promise to do sth,保证做某事.