1949 is the year ______ the People’s Republic of China was founded.A: thatB: whichC: wh

She is ill ___A.all the yearB.whole year roundC.all the year roundD.all year round

If the task ______ by the end of this year is delayed, the company will be under punishmen

The language experts believe that the ______ age for learning a foreign language is 6 year

______ is one of the most popular places in the United States to celebrate the New Years D

The general election of the United States is held every ______ years.A．3B．4C．5D．6

That the letter is found and answered so many years later is a（n)______to all the people.