21.The yard is too small for us to play  < so…that > => ………………………………………………………………………………………

22. She is too young to ride a moto bike  < enough >

=> …she is not young enough……………………………………………………………………………………

23.The cake is so hard that I can’t eat it  < such >

=> ……it such a hard cake that i cannot eat………………………………………………………………………………….

24.“ What time did you come home yesterday “ Lan said <before>

=>……………………………………………………………………………………..

25.Math and English are interesting to me   < interested >
i am interested in math and english