`-` BĐ Ý kiến :

`*` It + is / was / ... + VpII + that + Clause

`*` S + is / am / are / ... + VpII + to V-inf [ Mệnh đề `2` `=` Hiện tại / Tương lai ]

`*` S + is / am / are / ... + VpII + to have VpII [ Mệnh đề `2` `=` Quá khứ ]

`6`.

`-` It isn't thought that this camera costs that much

`-` This camera isn't thought to cost that much

`7`.

`-` Was it claimed that they had managed to solve the problem ?

`-` Were they claimed to have managed to solve the problem ?

`8`.

`-` It wasn't expected that the building collapsed after the storm

`-` The building wasn't expected to have collapsed after the storm

`\text{# TF}`

Đáp án:

`6,`

`->` It isn't thought that this camera costs that much.

`->` This camera isn't thought to cost that much.

`7,`

`->` Was it claimed that they had managed to solve the problem?

`->` Were they claimed to have managed to solve the problem?

`8,`

`->` It wasn't expected that the building collapsed after the storm.

`->` The building wasn't expected to have collapsed after the storm.

Giải thích:

Câu bị động kép:

`->` It + be + V3 / PII (thought, believed ...) + that + mệnh đề

`->` S + be + V3 / PII (thought, believed ...) + to + V (chia)

Chia V:

- Diễn tả sự việc xảy ra ở tương lai - hiện tại `:` to + V

- Diễn tả sự việc đang xảy ra `:` to + be + Ving

- Diễn tả sự việc diễn ra xảy ra ở quá khứ `:` to + have + V3 / PII