1 I saw a boy run in the palyground yesterday. 2 I gave the photo to you yesterday. 3 be driven by the current 4 The traffic in Guangzhou is serious. 5 There are many cars in Guangzhou. 6 I take one hour to do my homework everyday. 7 we walked through the forest and the river. 8 Thanks for your help. 9 Eatting in Guangzhou.