改错：Because her husband has died,so she had to support her familyHe won't go out until his mother will comeHe was very foolish that he didn't pass such an easy examIt was three months since he came to our schoolThe playground of our school is la

改错：Because her husband has died,so she had to support her familyHe won't go out until his mother will comeHe was very foolish that he didn't pass such an easy examIt was three months since he came to our schoolThe playground of our school is la
改错：Because her husband has died,so she had to support her family
He won't go out until his mother will come
He was very foolish that he didn't pass such an easy exam
It was three months since he came to our school
The playground of our school is larger than their school
It is brave for you to save my life
Could you tell me where the hospital was?
The streets in Nanjing are wider than Shanghai

改错：Because her husband has died,so she had to support her familyHe won't go out until his mother will comeHe was very foolish that he didn't pass such an easy examIt was three months since he came to our schoolThe playground of our school is la
Because her husband has died,so she had to support her family
Because her husband had died,she had to support her family.
He won't go out until his mother will come
He won't go out until his mother comes.
He was very foolish that he didn't pass such an easy exam
He was so foolish that he didn't pass such an easy exam.
It was three months since he came to our school
It is/has been three months since he came to our school.
The playground of our school is larger than their school
The playground of our school is larger than that of their school
It is brave for you to save my life
It is brave of you to save my life
Could you tell me where the hospital was?
Could you tell me where the hospital is?
The streets in Nanjing are wider than Shanghai
The streets in Nanjing are wider than those in Shanghai.

Because her husband has been dead,she had to support her family.