I cleaned my classroom(A with three hours Bthree hours ago C in three hours D three hours before)如上
问题描述:
I cleaned my classroom(A with three hours Bthree hours ago C in three hours D three hours before)
如上
答
B:cleaned为过去时,因选用过去时态 D选项用法错误 C:在三个小时以内 A:不表时间 答案为B
答
B