David, how old is your father this year? – ———— And we just had a special party for his _____ birthday last weekend.

What should we do now, Mr. Clark?——Please turn to Page_____and look at the_____picture.

Nanjing, ____ capital of Jiangsu Province, has ___long history.

Are you going to ____________ your friends to your party?—Yes, sure.

The students found _______ easy to work out this maths problem.