推 stonecold926:被動 垃圾是被清掉的不會自己消失 10/17 05:02
一般考題
Teacher: Be sure that all the trash up before you leave.
Students: No problem, Ms. Wu.
(A) clean (B) is cleaned (C) has cleaned (D) is cleaning
答案是b
但我想不透說
A也可以啊
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