You can 't work out the math problem unless you --to your teacher carefully .

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
英语人气:201 ℃时间:2019-10-19 20:11:13
优质解答
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
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