Did youlisten to MrJackson’s lecture — Yes，I have never heard a _____ one

Would you like to come to the dinner party here on Saturday ?　 —Thank youI’d love to, _____ I’ll have to finish all my homework before the weeked, otherwise, my parents won’t let me go.]

In our class, the student leaders are on dutyevery few days.

This is the best hour I can _________ I_________ inthe past twelve years.

____—Yes, I am.