家谱 family tree 唯一的孙子 the only grandson 家庭成员 family members 去购物 go shopping 去骑自行车 go cycling 互相帮助 help each other 去超市 go to the supermarket 看电影 go to the movies /cinema...Fish usually______fast in the river.A.swimB.is swimmingC.is swimD.swimsTomorrow l______to City Park with my mother.A.goB.will goC.wentD.am goingAD