I wonder if Jim ________ for a walk with us in the park tomorrow.— He will if he ________ free.

There are many books on the shelf. But only one of them is ______.[ ]

.Is this the very factory____he visited last month?

I often have conversations with John over ______ telephone, while keep in touch with Tom by ______ letter.

下列词语中，字形都正确的一组是（ ）