Chia động từ ở thì HTHT , HTTD , HT Đơn 1, recently the united states ............( Alter) the whole of their ununigration laws 2 , look at the London eye! Thế wheel ...........( Appear) motionless , bút it ............. ( Rotate) slowly 3, look ! Thế concert ............ ( Start ) at 7p.m and ...........( End ) at 9p.m 4, canada ...........( Provide) fish first and other nature resource to the world since 15th century 5, we have already booked our holiday. We .......... ( Go) to Scotland in July 6, to preserve nature habitat the government .............( Establish) six nature park so far