China, ____ one of the great four countries with ancient civilizations, is best-known _______ its great development in all the fields over the years.

It ___ to me that she didn’t know I had moved into the new house.

ASEAN foreign ministers are better engagement with the Chinese government when it comes to the various conflicts in the South Chinese Sea.

He _____ the bag, but saw nothing in it. [ ]

__________ it is from our own planet Earth to Mars!—Yes, it takes months to travel to Mars by spacecraft.