问题
选择题
People ______ running everywhere. Do you know what_______? [ ]
A. see; has happened
B. are seen; is happening
C. be seen; has happened
D. see; happens
答案
答案:B
People ______ running everywhere. Do you know what_______? [ ]
A. see; has happened
B. are seen; is happening
C. be seen; has happened
D. see; happens
答案:B