Hurry up! I’m afraid there _______ .

Readers can ___ very smoothly without knowing the exact meaning of each word.

My new novel has disappeared.Who _______ have taken it?

_______ snacks and drinks, but they broughtcards for entertainment when they had a picnic in South Bank Parklands.

The scientists claimed( 声称) to _______ a jet plane that uses atomic energy as propelling _____, but they can’t produce an atom of evidence to prove it. [ ]