We may find that learning a foreign language does not have to be________learning our mother tongue,but can in fact be twice ________.
–You seemed to have been impressed by his songs.--Well, not exactly so. It was his way of singing _____his voice that really impressed me.
–Did you enjoy yourself at the party? --Yes, I’ve never been to ______one before.
Peter’s jacket looked just the same as Jack’s, but it cost ______his.
Not until I came home last night _____to bed.
_____twice, the postman refused to deliver our letters unless we chained our dog.