Có số phần tử là :

  ( 50 - 1 ) : 1 + 1 = 50 ( phần tử )

                       Đáp số : 50 phần tử 

In ____ to that , my bike tires was flat ( Add )

Viết lại câu

1, He always studies hard though he encounters difficulties

=> Despite ______________________________________________

2, Although he's got an English name, he is in fact German

=> Despite ______________________________________________

3, Although it got dark , they continued to work

=> In spite of______________________________________________

Viết lại câu

1,They took away his passport so that he wouldn't leave the country

=> They prevented _________________________________________