Help me.

Question `46` : We haven’t phoned her since we went to the party together.

* Quá khứ đơn -> Hiện tại hoàn thành (Lần cuối ai đó làm gì là khi nào `->` Ai đó đã không làm gì kể từ khi nào)

- The last time + S + Ved/ V2 + … + was when + S + V (quá khứ đơn)

`->` S + have/has + not + PII + … + since + S + V (quá khứ đơn)

Question `47`: The rubbish was not put in the bins by the students after the party yesterday.

- Bị động thì quá khứ đơn : S + was/ were + not + PII + (by O)

- by O đứng trước trạng từ chỉ thời gian, sau trạng từ chỉ nơi chốn

Question `48` : The car was too expensive for him to buy.

Hoặc : The car was so expensive car that he couldn’t buy it.

Hoặc : It was such an expensive car that he couldn’t buy it.

- can (not) afford to do sth : (không) có khả năng làm gì, (không) đủ tiền mua gì - Không đủ tiền mua xe `->` Xe quá đắt

Question `49` : Despite being the youngest son in the family, I had to do much housework.

- Although + clause 1, clause 2 : mặc dù

`->` Despite + danh từ/ cụm danh từ/ V-ing, clause : mặc dù

- Hoặc làm như câu bạn làm cũng đúng.

Question `50` : We need to share the tasks so that the burden on each member will be more tolerable.

- so that/ in order that + clause : để…

- Chúng ta cần chia sẻ công việc để gánh nặng đặt lên mỗi thành viên sẽ nhẹ hơn

`46`.We haven't phoned her since we went to the party together

`->` Thì HTHT ( PĐ ) : S + haven't / hasn't + VpII

`=>` I , You , We , They `+` haven't

`->` Since + Timeline : Từ khi nào

`47`.The rubbish wasn't put in the bins by the students after the party yesterday

`->` BĐ `-` QKĐ ( PĐ ) : S + wasn't / weren't + VpII ( by O )

`=>` He , She , It `+` wasn't

`48`.The car was too expensive for him to buy

`->` S + is / am / are / ... + too adj + ( for O ) + to do sth

`=>` Quá ... để mà ...

`49`.Despite being the youngest son in the family , I had to do much housework

`->` Despite / In spite of + V-ing / N + Clause

`=>` Dùng để chỉ về sự đối lập giữa `2` mệnh đề

`50`.We need to share the tasks in order that the burden on each member will be more tolerable

`->` Clause 1 + so that / in order that + Clause 2

`=>` Dùng để chỉ về mục đích

`\text{# TF}`