The students are busy ________ their homework. [ ]A. do B. with C. to do D. on-七年级英语

题目简介

The students are busy ________ their homework. [ ]A. do B. with C. to do D. on-七年级英语

题目详情

The students are busy ________ their homework.
[     ]
A. do        
B. with     
C. to do        
D. on
题型:单选题难度:偏易来源:同步题

答案

B

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