we knew the computers will be used in every family错在哪儿?
问题描述：
we knew the computers will be used in every family错在哪儿?
答
if l fail the exam,l will very sad .sad是形容词,签名应该加be
正确的应该是if l fail the exam,l will be very sad.
we know the computers will be used in every family.
应该用原型
我也是学生,