If Mary doesn't clean her teeth every day,she'll have toothache.(保持原句意思）
问题描述：
If Mary doesn't clean her teeth every day,she'll have toothache.(保持原句意思）
----Mary----her teeth every day,she'll have toothache.
转换成与原句意思相符的句子-----Mary -----her teeth every day,she'll have toothache.
填两个单词
答
如果玛丽不是每天都刷牙,她将会牙疼.
与原句相符,空格处填：because doesn't,整句变成因为玛丽不是每天刷牙,所以她将会牙疼.与原句意思相符.