. ................. problems in sailing in tropical seas is the coral reefs.
A. One of the biggest
B. The biggest one
C. Of the biggest one
D. There are the biggest
Giải bởi Vietjack
KEY A
Giải thích: one of the + Ns: một trong những...
Dịch: Một trong những vấn đề trong việc đi thuyền ngoài biển nhiệt đới là những rặng san hô.
Hardly any of the paintings at the gallery were for sale, _____?
English has become a second language in countries like India, Nigeria or Singapore where_______ for administration, broadcasting and education.
