John is unhappy because he failed in the English exam. 该同义句. John is unhappy because he( ) ()the English exam.

问题描述:

John is unhappy because he failed in the English exam. 该同义句. John is unhappy because he( ) ()the English exam.

有is 的话不能用do。 所以用isnot pass.

John is unhappy because he (didn't) (pass) the English exam.