5. The last exhibition was not _______ this one. A. as interesting B. so interesting as C. most interesting D. more interesting

$B.$ So interesting as

→ Vì $A$ thiếu as (so sánh bằng), $C$ thiếu the ở sau not (so sánh nhất), $D$ thiếu than ở sau interesting (so sánh hơn) ⇔ Sai ngữ pháp

So interesting as = as interesting as (So sánh bằng)

Công thức: S + be/V + as + adj/adv + as + N/ pronoun

Dịch: Triển lãm lần trước không thú vị bằng lần này.