__________ that he was working abroad, he would willingly have helped us A.If it had been for the fact B.If it hadn’t been for the fact C.Had it been for the fact D.Had if it not been for the fact
Đáp án đúng: B Giải chi tiết:Cấu trúc với IF IT WERE NOT FOR/ IF IT HADN'T BEEN FOR dùng để miêu tả 1 sự việc này phụ thuộc vào sự việc kia. If + it + were not for / hadn't been for + Noun / the fact that clause.