(Viên chức Mầm non) 5000+ câu trắc nghiệm Ngoại ngữ có đáp án - Đề thi số 10

It was a difficult question that they couldn’t explain even in their mother-tounge language.

17/30

It was ________ a difficult question that they couldn’t explain even in their mother-tounge language.

so

such

very

too

Giải thích

Đáp án đúng là B

such(sucha/an+adj+ Nown…that)