--Jim isn’t in the classroom.Where is he now?-He the library.A.will go to B.has been toC.has gone to D,goes to
—Which country has the_____population in the world? —China.
—David has made great progress recently. —_____, and _____.
This is the most beautiful park I have _____ visited.
—When did the Greens come to China? —They_____ China for seven years.
Do you know where_______________?