Thank you your great help.—You are .

In the past few years, several Non-Governmental Organizations ______ all over the world.

What are you looking for—I’m looking for the pen ______ my father gave me last week．

With a lot of difficult problem___, the newly-elected president is having a happy time.

It was in 1969 ___ the American astronauts first succeeded in landing on themoon.[ ]