`11`. Alex was so weak that he couldn't lift the box. (such)

Alex was such a weak person that he couldn't lift the box.

Such (a/an) + N/cụm N + that ... : quá... đến nỗi mà ...

`12`. "I don't live in Ha Noi now," she said.

She said that she didn't live in Ha Noi then.

Câu tường thuật lùi thì.

`13`. Although she was hard-working, she wasn't promoted.

Despite being hard-working, she wasn't promoted.

Despite/ In spite of + Ving/N = Although + mệnh đề: mặc dù

`14`. You are lazy. You earn less money.

The more lazy you are, the less money you earn.

So sánh kép với tính từ: the + more adj/ adj-er + S + V,  the more adj/ adj-er + S + V.

`15`. Amy is short. She can't join the contest.

Amy isn't tall enough to join the contest.

be + adj + enough + to V: đủ ... để ...

`16`. "Why didn't you tell me the truth last Sunday?" Linh asked Long.

Linh asked Long why he hadn't told her the truth the Sunday before.

Câu tường thuật lùi thì.

`17`. I can't attend my sister's weding.

I wish I could attend my sister's weding.

Câu ước ở hiện tại: S + wish(s,es) + (that) + S + Ved.

`18`. They are going to destroy the building. (pull)

They are going to pull down the building.

Pull down = destroy: phá hủy, tháo dỡ

11. 

=>Alex was such a weak person that he couldn't lift the box.

12.

=>She said that she didn't live in Ha Noi then.

13.

=>Despite being hard-working, she wasn't promoted.

14.

=>The more lazy you are, the less money you earn.

15.

=>Amy isn't tall enough to join the contest.

16.

=>Linh asked Long why he hadn't told her the truth the Sunday before.

17.

=>I wish I could attend my sister's weding.

18.

=>They are going to pull down the building.