You can 't work out the math problem unless you --to your teacher_英语解答

You can 't work out the math problem unless you --to your teacher carefully .
A don't listen
B will listen
C won't listen
D listen
选什么

人气：331 ℃　时间：2019-10-19 20:11:13

解答

D
unless除非如果不
从句用一般现在时主将从现？是的前面没有将来时啊。。？You can't work out the math problem后面也是用现在时why？can't是情态动词从句要用现在时