The following ______ of written reply can be helpful to you._
举一反三
- 中国大学MOOC: The following ______ of written reply can be helpful to you.
- If you want to search for the top conferences, which of the following is not helpful to you?
- What of the following can be helpful for us to realize our dream?
- You can use the internet to find helpful trade information.
- ______ you choose to contact us, you can expect our efficient and helpful service.