30．Are you certain that this is _________in his speech

I attend my friend’s coming-of-age ceremony, Mum—No, unless you see to ________ that you will be home before 10：00 P．M.

Hi, Mary. __________—Not so well. I can’t keep up with the other students.

We’ll have a hiking trip, but when shall we meet—Let’s make it half past seven themorning of May 8.

n Barcelona on July 17, 1920, Juan Antonio Samaranch enjoyedsuccess as ______roller skater and led _______ Spanish team to the world title.