At present robots are common in industry and perhaps they will soon be common in
home.
A.the; 不填 | B.the; a | C.不填; the | D.an; 不填 |
相关知识点
推荐套卷
At present robots are common in industry and perhaps they will soon be common in
home.
A.the; 不填 | B.the; a | C.不填; the | D.an; 不填 |