an to open to the outside world in the ate1970s. , there have beengreat changes in the country.

The police tried _____ to break up the protest crowds[ ]

Mary had to wok at evenings and weekends.Only in this way _____ able to complete the report by thedeadline. [ ]

nted sheep, I drank milk and I tried everything,but nothing helped —It seems you _____ too much recentlyTry some sleeping pills

Was it in 1969 ____ the American astronaut succeeded ____ landing on the moon?