【单选题】
Chinahas launched a number of ____satellites since the 1970s.
【单选题】
11.Since family ______children’s character, he encouraged parents to teach children reading.
【单选题】
The number of people invited ____fifty, but a number of them _____absent.
【单选题】
The number of people invited______ sixty, but a number of them______ absent for different reasons.
【单选题】
In June 1941 Hitler suddenly launched an attack ______ Russia.
【单选题】
Agreatnumberofcollegesandfactories____since1949.
【单选题】
The number of pages in this dictionary ___ about two thousand.
【单选题】
The number of people who ______ cars of their own is increasing.
【单选题】
A number of foreign scholars [] invited to contribute articles to the magazine.
【单选题】
I hope you will remember the parking area and the ( )number.