_the girl is playing the piano!括号里填什么 有How well what good How 和What还有When Mary was young,she ___ able to dance very well.could be can be was could I'm glad___hear from you to hear from you hear a letter from you to hear a letter from you-———— does your father come to see you Twice a month.How often How long How soon How far（问题下面的是可供选择的答案）
问题描述：
_the girl is playing the piano!括号里填什么 有How well what good How 和What
还有When Mary was young,she ___ able to dance very well.
could be can be was could
I'm glad___
hear from you to hear from you hear a letter from you to hear a letter from you
-———— does your father come to see you Twice a month.
How often How long How soon How far
（问题下面的是可供选择的答案）
答
How well
was
to hear from you
How often
楼上的，be albe to本身就是能够的意思，加个can是错误的。
答
How well _the girl is playing the piano!When Mary was young,she _ can be __ able to dance very well.I'm glad_to hear from you __How often does your father come to see you Twice a month.