题目内容
(请给出正确答案)
[单选题]
He is training hard, hoping to ______ a new world record.A.set offB.set asideC.set upD.
A.set off
B.set aside
C.set up
D.set out
答案
查看答案
A.set off
B.set aside
C.set up
D.set out