HÃY CHỌN MỘT CÂU TRẢ LỜI ĐÚNG NHẤT
12.
Hard _______ he tried, the second runner could not catch up with the first one.
A. as
B. for
C. so
D. that
12.
Hard _______ he tried, the second runner could not catch up with the first one.
A. as
B. for
C. so
D. that