My father never smoke. –___.

I________to my cousin’s birthday party last night，but I was not available.

The simple joy of reading is something we take for granted. But many people have had to _____ this pleasure because of poor eyesight.

When the students were playing games on the playground, Jim suddenly stopped _____and began to cry, so we stopped _______ what was wrong with him.

No school ever allows students to eat in class. Butstudents are always allowed to eat snacks during the ________ break.