英语的一大题?帮个忙做做~使用-ing形式来完成下列句子.一些动词将用于不止一次 使用laugh ,compete ,s

英语的一大题?帮个忙做做~
使用-ing形式来完成下列句子.一些动词将用于不止一次 使用laugh ,compete ,smile,touch,appoach,shake,1.we were all nervous about the( )examinations.2.I always know when my mother is telling a joke,after a few seconds ,she always looks at me( ) 3.Business leaders often look very serious,they do not often have( )faces 4.After the dog fell in the lake,it climbed out( )itself 5.After we saw the comdy show,we left the theatre ( ) 6.It is exciting to watch( )athletes reach the other end of the swimming pool 7.The blind man walked( )the walls of the buildings