用介词加关系代词填空
1.Therewere20singersinThesameSongyesterday,________fourcamefromHongKong.2.Johnhasinterestinplayingmanykindsofsports,________basketballandbadmintonarehisstrongpoints.3.Heisamanwithrichexperience________muchcanbelearned.4.Zunhuaisoneofthefamoustourismdestinations,20milesnorthwest________liesDongling,agroupoftheQingImperialTombs.5.Thehouse________Igrewuphasbeentakendownandreplacedbyanofficebuilding.