He should have come to join in the thorough cleaning. —He ________, I think. It’s not his turn.

Has ____ how many spies we caught during the war ____ up to now?

19. If you are not sure _______ your strengths and weaknesses ______, you may ______ a professional expert so that you can develop yourself to the full.

I _______ the dance performance many times, each giving me a new understanding

Isn’t it lovely to think that I ________ myself on thesunny beach tomorrow at this time