题干
As long as you keep trying, your dream will certainly .
A：come in
B：come on
C：come about
D：come true
答案(点此获取答案解析）
D
As long as you keep trying, your dream will certainly .
A：come in
B：come on
C：come about
D：come true
Cu2++5Fe2++2S。下列说法正确的是