— ____ do you improve your English?— By listening to tapes and reading aloud.
—How clean the room is! —Yes,I am sure that someone _______ it.
________ mothers can't come to the meeting because they have gone to Dalian.
—Where is Lily? —Oh, she _______the volleyball match on the playground.
The Olympic Games of 2016 will____ in Brazil.
— A Boeing 777-200 plane became lost in communication (失去联系) at midnight the early morning of March 8th. —I was amazed(震惊) to hear that.