$\text{1}$ I haven't talked to him for three months . 

→ S + hasn't/haven't + Vpp + O 

→ The last time + S + Ved/cột 2 + was + time

$\text{2}$ Oil painting is different from pencil painting . 

→ different from : khác với = not the same (N) as : ko giống như

→ S + be + different from + N/pronoun 
$\text{3}$ That coat is not as expensive as this one . 

→ S + be + not + as/so + adj/adv + as + N/pronoun 

$\text{4}$ My father is interested in drinking hot coffee in the morning . 

→ be interested in + N/V-ing : hứng thú ở cái j/việc j 

$\text{5}$ I used to go swimming every Thursday when I was at school . 

→ used to + V-inf : đã từng làm j 

$\text{1}$ We started the game for half an hour ago , but we haven't finished it . 

→ Clause 1 , but + clause 2 ( sự đối lập giữa 2 sự việc/hành động ) 

$\text{2}$ My mother often donates money for charitable organizitions . 

→ Thì Hiện Tại Đơn - often 

→ S + V(s/es) + O 

$\text{3}$ Mr Binh has started to recycle rubbish for two years . 

→ Thì Hiện Tại Hoàn Thành - for two years

→ S + has/have + Vpp + O 

$\text{4}$ Because the lake is full of rubbish , they decided to clean it up last Sunday . 

→ Because + clause 1 , clause 2 ( nguyên nhân ) 

→ decide + to V : quyết định làm j 

$\text{5}$ My sister thinks arranging flowers is relaxing . 

→ think sth/doing sth + is + adj 

$\text{@Zyy}$ 

1. The last time S+present simple(+year ago) = S+present perfect(+for year)

2. different from: khác với

3. S+be+not+as+adj+as: Không... bằng

4. enjoy = interested in: thích thú

5. used to+V: từng

II.

1->5 làm theo nghĩa 

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