168. Whenever I met him, _____ was fairly frequent, _____ I liked his sweet and hopeful smile.
The development of industry has been ________ gradual process throughout ______ human existence from stone tools to modern technology.
----I’m afraid I’ve broken your cup. ----______________, it was old and I was going to throw it away.
Between the two parts of the concert is an interval, ______ the audience can buy ice-cream.
––Linda didn’t invite us to the party. –– ______? I don’t care.
To be successful, you must be smart, confident, and, ______ honest.