问题
选择题
When Tom's parents finished______in the office, it was already dark outside.[ ]
A. working
B. to work
C. work
D. worked
答案
答案：A
搜题请搜索小程序“爱下问搜题”
When Tom's parents finished______in the office, it was already dark outside.[ ]
A. working
B. to work
C. work
D. worked
答案：A