Scientists think they have _____ in their attempt to find the causes of some major dieases.

Itsoundlike a perfect destination,but it is really adventurous to go there.

ly a debate about ______is real beauty has been raised Peopleare pushed to think some questions like ______ is better,artificial beauty ornatural one

Our family will go to Australia for a holiday. —Oh, really? That sounds __________!

About _________ of the teachers in tour school were born in ________.