问题
选择题
—Have you seen Mr. Smith?
—Yes. Look, he _______ his bike over there. [ ]
A. cleans
B. cleaned
C. is cleaning
D. has cleaned
答案
答案:C
—Have you seen Mr. Smith?
—Yes. Look, he _______ his bike over there. [ ]
A. cleans
B. cleaned
C. is cleaning
D. has cleaned
答案:C