the reason _he was late for school was __he had to send his mom t_英语解答

the reason _he was late for school was __he had to send his mom to a hospital
a.that why
b.why because
c.why that
d.that because

人气：298 ℃　时间：2020-06-12 22:41:49

解答

选C
前部分是定语从句(the reason后用why),后部分是表语从句（规定用that)