I have just watched a good film about ________ elderly fisherman in Guilin.

_____did the space flight last? —Twenty-one hours.[ ]

That is a door ______ the world.[ ]

Tom kept quiet about the accident ____ lose his job.

I can ___ believe my eyes. You are working so ____now. but I remember you didn’t use to. –People sure change. I have a dream of studying abroad, ____English-speaking countries.