如果你需要什么，请一定告诉我。

___Do let me know if you need anything.

他确实喜欢你——他只是害羞。

He ___does like you - he's just shy.

我真的很喜欢成为一名志愿者，尽可能多地帮助人们。

I really ___do love to be a volunteer, to help people as much as I can.