专业、全面、易懂的全领域名词百科

()Thestudentstheirhomeworkeveryday.Nowthey_theirhomework.

题型：单选题

选项

A. do, do

B. does, doing

C. doing, are doing

D. do, are doing

正确答案：D

()Thestudents______theirhomeworkeveryday.Nowthey_______theirhomework.