- Jack and his wife seem well suited to one another .
- A misunderstanding was the beginning of their quarrel .
- We write to each other regularly .
- They are both embarrassed in each other's presence .
- For a jest, my prince, we did exchange garments .
- One air cell coalesces with another .
- They had an exchange of greetings .
- Neither is subordinate to the other .
- They exchange an especially significant look .
- They reinforce one another .