`1.` I’ve never tasted a more delicious cake than this one.
- S + have/has + VpII + ....
`2.` Is this the biggest (N) you’ve got? (Thiếu N, the + adj-est + N)
`3.` This is the first time I have heard such a telented pianist.
`4.`The shop isn't as busy today as yesterday.
- S + be (not) + as + adj + as + N/pronoun.
`5.`I have never heard such a boring story before. (Bị sai nhé)
- This is the first/second/... time + S + have/has + VpII + ...
`->` S + have/has never + VpII + ... + before