When there are cordial elations between the two countries, we mean there exists a （）relationship between them.

I can （） you that the animals are well cared for in our...

单项选择题I can （） you that the animals are well cared for in our zoo, so you needn't worry about them.

I'm very grateful for your help and hope to do somethin...

单项选择题I'm very grateful for your help and hope to do something for you （） in the future.

Unfortunately, the package I was expecting was （） to th...

单项选择题Unfortunately, the package I was expecting was （） to the wrong address.