— Do you know some robots are able to take care of children?
— Really? ________ interesting it is!
A.What B.What an C.How D.How an
My grandfather's hobby is collecting stamps. He ________ them for over forty years.
A.collect B.collects C.is collecting D.has collected
Planting more trees on the sides of the road ________ a good way to make our city more beautiful.
A.is B.are C.was D.were
Tom, hurry up! It's time to have ________ breakfast. The school bus is coming soon!
A.a B.an C.the D./
Many countries in the world are looking forward to ________(trade) with China.
Every winter, many ________(visit) come to Changchun to enjoy the world of snow and ice.
