IT WAS _____ A DIFFICULT QUESTION THAT THEY COULDN'T EXPLAIN EVEN...

102. - DAP AN TIENG ANH CONG CHUC QUANG NGAI 2017
DAP AN TIENG ANH CONG CHUC QUANG NGAI 2017

102. It was _____ a difficult question that they couldn't explain even in their

mother-tounge language.

A. so B. such (such a/ an + adj + Noun..that)

C. very D. too