From his      look, I guess his exam result this time is      .

       with Dan’s hometown, yours are exciting and lively.

     students are required to take the boat race.

It is well known to all that a machine needs fuel to run;    ,man needs food to live on.

.It remains       whether Jim will be healthy enough to play in the finals.

How time flies! It has been ten years         I moved to Chongqing.

Silk from China found its way to India, the Middle East and Rome,      spices(香料) and glass, which was not known to China.

This is the first time that I      face to face with the president.

—Would you like to      the discussion this Saturday?

—Sorry, I have an important meeting to      .

—How long _____ he ______ in the USA?

—Three years. But he never regrets coming back to China.