Đáp án:+Giải thích các bước giải:

Cấu trúc chủ ngữ giả:
It + be + adjective/noun + (for someone) + to V / that + clause

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Chi tiết hơn

1. Cấu trúc cơ bản với "It" làm chủ ngữ giả:

It + be + adjective + (for someone) + to V.

2. Cấu trúc với "It" + be + noun + to V / that + clause:

It + be + noun (e.g., a good idea, a fact, a problem...) + to V / that + clause

3. Cấu trúc với "It" + takes / took... (time, effort, etc.):

It takes + someone + time + to V

4. Cấu trúc với "It seems / appears / happens..."

It seems that... / It appears that... / It happens that...

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Câu 9:It is a good idea to buy the books we have always wanted, now that we have money.
( đề xuất nên làm gì → dùng “It is a good idea to...”)

Câu 10: It seems that the shop doesn’t have so many beautiful clothes.
(Hoặc có thể dùng: It is true that..., It is a fact that...)

Câu 11:It is too late for him not to go home.
(Có thể dùng câu It is necessary for him to go home now because it is too late.)