09ÄêÖп¼Ó¢ÓïÄ£ÄâÊÔÌâ11
Ò» µ¥ÏîÑ¡Ôñ£º´ÓA¡¢B¡¢C¡¢DÖÐÑ¡³öÒ»¸öÄÜÌîÈë¾äÖпհ״¦µÄ×î¼ÑÑ¡Ïî¡£
£¨ £©1.---There is enough food for the birds, isn\'t ____ ?
---No. We need to get some.
A. it B. there C. that D. this
£¨ £©2.---People find it hard to get across the river.
---I think at least two bridges over it.