Peter ________ up at six o'clock every morning. [ ]
A. gets
B. get
C. is getting
答案:A
How many of us _______, say,a meeting that is not important to us would be interested in the discussion?
A.attended
B.attending
C.to attend
D.have attended
在器官移植中,HLA配型最重要的是()
A.HLA-DR
B.HLA-A
C.HLA-B
D.HLA-DQ
E.HLA-C