He didn't come to school because it rained hard.=He didn't c
He didn't come to school because it rained hard.=He didn't c
He didn't come to school (because of) the illness.
Chen Ben didn't come to school because he[ ][
jack didn't come to the party because it rained hard .jack d
She didn't come to the party because it rained hard
i didn't go to school because it rained.
He didn't come to school because he was ill对because he was i
He didn't come because he was ill.=He didn't come because of
He didn't come to school yesterday (because he was ill) ).如何
He didn't come to school because he was ill yesterday这个原因状语里
he didn't come to school because he (had/have)a high fever.b
He didn't go to school,(because he was ill).