II.

1. started

when I was 6 years old có nghĩa là thời gian bắt đầu sở thích

2. went

câu trước có taught -> QKĐ

3. find

S + find + n/V_ing + adj

4. will

in the future -> TLĐ

III.

1. Hoa finds playing Monopoly boring because it is difficult

S + find + n/V_ing + adj

2. My brother doesn't like ice-skating because he thinks it is dangerous

S + think + + n/V_ing + is + adj

1) started ( từ khi : dùng start)

2) go ( go swimming: đi bơi)

3) find ( Find + danh từ + tính từ: nhận thấy ai/cái gì như thế nào)

4) will ( dùng thì TL vì có DH: in the future)

III:

1. Hoa find playing Monopoly boring because it difficult

(S + find + n/V_ing + adj)

2. My brother doesn't like ice-skating because he think that it dangerous 

(Khẳng định:  I think + Clause = I think that + Clause)