问题
选择题
Li-ping is said in Beijing, but we don’t know what school she worked in.
A.to have worked
B.to work
C.to be working
D.to have been working
答案
答案:A
Li-ping is said in Beijing, but we don’t know what school she worked in.
A.to have worked
B.to work
C.to be working
D.to have been working
答案:A