you'd brtter go to fuzhou by train(改为否定句）she weites to her mother twice a month（对画线部分提问）——————忘写了NO.1 YOU____ ____ ____ ____ to fuzhou by trainNO.2 _____ _____ does she write to her mother?

you'd brtter go to fuzhou by train(改为否定句）she weites to her mother twice a month（对画线部分提问）——————忘写了NO.1 YOU____ ____ ____ ____ to fuzhou by trainNO.2 _____ _____ does she write to her mother?
you'd brtter go to fuzhou by train(改为否定句）
she weites to her mother twice a month（对画线部分提问）
——————
忘写了NO.1 YOU____ ____ ____ ____ to fuzhou by train
NO.2 _____ _____ does she write to her mother?

you'd brtter go to fuzhou by train(改为否定句）she weites to her mother twice a month（对画线部分提问）——————忘写了NO.1 YOU____ ____ ____ ____ to fuzhou by trainNO.2 _____ _____ does she write to her mother?
1.you would better not go to fuzhou by train
2.How often does she weite to her mother?

You'd brtter not go to Fuzhou by train
解释：would better +不定式（to省略）
不定是否定直接在前加not
How often does she writes to her mother?
解释：表示频率划线用How often 提问

You'd better not go to Fuzhou by train.
How often does she write to her mother?

You'd better do sth 你最好做某事
它的否定式：
You'd better not do sth 你最好不要做某事
twice a month 表示频率，所以用how often 多久一次来提问
How often does she write to her mother?

第一个句子在better 后加not ，第二个句子改为how often does she write to her mother ?