With best wishes.
致以我诚挚的祝福
I‘m looking forward to hearing from you.
期待您的回信
I‘d appreciate it if you could reply earlier.
如果您能尽早回复我会万分感激
I sincerely hope this letter can draw your attention to the matter and I hope the problem mentioned above can solved as soon as possible.
我衷心希望这封信可以引起您的注意,并且也希望以上问题能够及早得到解决。
致以我诚挚的祝福
I‘m looking forward to hearing from you.
期待您的回信
I‘d appreciate it if you could reply earlier.
如果您能尽早回复我会万分感激
I sincerely hope this letter can draw your attention to the matter and I hope the problem mentioned above can solved as soon as possible.
我衷心希望这封信可以引起您的注意,并且也希望以上问题能够及早得到解决。