I AM SORRY I CAN'T HELP YOU NOW. I'M BUSY _____ MY LESSON.RIDING...

15. I am sorry I can't help you now. I'm busy _____ my lesson.

riding in Snowy Mountain or riding a surfboard in Queensland. Others love love

A. to B. X C. with D. for

watching kangaroos and koalas (43) wild forests. My sister says she only enjoys (44)