Every year a lot of tourists travel to Hainan , because it’s island .

a pity! Ididn’t attend the lecture given by Dr. Green yesterday.—I _____, either, ifmy parents hadn’t reminded me.

Thanks for listening to my problem and giving me your advice, Amy.—_______. That’s what friends are for.

Recently we held a discussion about what we shall use for power when all the oil in the world has _________?

The class __________ 80 students is hard to manage.