Not until he went through real hardship _____the love we have for our families is important.

ing, will you take part in the comingNational English Speech Contest —______, we should catch the preciousopportunity.

couldn’t help but _____very worried about his illness when I heard he was in hospital because of heart disease.

I don’t know why you’re always worrying about it. ___, you have nothing to do with it.

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