Đáp án:

`1.`  My father hasn't seen his brother for nearly  `20`  years.

`-` HTHT ( CPĐ ) `:` S + haven't / hasn't + V3 / VpII + O.

`-` DHNB `:` for  `20`  years

`2.`  In spite of being seriously ill, he was determined to finish his work.

`-` Although + C1 + C2

`=` In spite of / Despite + Ving / N / N phrase

`->` Chỉ sự tương phản giữa hai mệnh đề

`3.`  How long haven't you ridden a bike ?

`-` Cấu trúc `:` How long + haven't / hasn't + S + V3 / VpII + O ?

`-` How long dùng để hỏi về bao lâu làm gì đó

`4.`  Because the rain was heavy, they couldn't go for a picnic last week.

`-` Because of + Ving / N / N phrase + Clause

`=` Because + C1 + C2

`->` Chỉ nguyên nhân của một sự việc ; hành động ; sự kiện

`5.`  That's the worst film I have ever seen.

`-` S + have / has + V3 / VpII + O.

`=` That / This + be + the + short adj`-`est / most`-`long adj + S + have / has + V3 / VpII + O.

1. My father hasn't seen his brother for nearly 20 years

- HTHT : S have/has not VPII for..

2. In spite of being seriously ill, he was determined to finish his work

- in spite of Ving

3. How long haven't you ridden a bike?

- Wh- haven't/hasn't S VPII?

4. Because the rain was heavy, they couldn't go for a picnic last week

- because S V = because of N/Ving

5. That's the worst film I have ever seen

- S have/has VPII