Hearing the loud noise,the boy looked out of the window,__________.
At the meeting they discussed three different ________to the study of math.
It seemed only seconds ________ the boy finished washing his face.
They are walking down the way _______ there are many trees on ______side.
_______ from father to son, the music has not changed for centuries.
—Why are you going to make your journey in Hainan?—I really _______the place.