Nam has a broken leg _________ he fell over while he was playing basketball.
Giải thích
Đápán: B
Giảithích:
-Because + S + V = Because of + N/Ving: bởivì
- Although + S + V = In spite of/ Despite + N/Ving: mặcdù
Dịch:Nam bịgãychânvìbịngãkhiđangchơibóngrổ.