He made another wonderful discovery, _________ of great importance to science.

lways dreams of his song ______,so that he can make a fortune overnight.

Whose shirt is this—— It _______ be Li Lei’s. It is too big for him.

The hotel was nice; the weather was hot; the beaches were beautiful. _______ I’d say it was a great vacation.

Mr White has been working all the morning with no rest.— He is a(n)________man.He never looks tired. [ ]