选择C
如果选A,则应该表达为Helen is too nice a girl,
不选B,因为else表示“其他的”,不符合题目意思,
如果选D,则应该表达为Helen is a very nice girl,
选择C,Helen is quite a nice girl,表达符合规范。
追问They start_____tennis after the football training.
A 、to play B、to playing C、play D、plays
追答选择A,start to do sth.或者start doing sth.(不定式或者动名词形式)