Bài 2: Finish the second sentence so that it has the same meaning with the first one. 
1. Laura hasn't seen her since she left for Japan 
=> Laura last... 
2. Lucy hasn't worn that dress since Babara's wedding
=> Lucy last .. 
3. We haven't seen Tom since he moved to Bristol 
=> We last ...
4. I haven't seen him since I was a student 
=> I ... 
5. The last time I played football was in 1977 
=> I have .. 
6. This is the first time I have been to this entertainment park 
=> I have .. 
7. This is the first time Bob has ever visited VietNam 
=> Bob has.. 
8. I've been working for this company for ten years
=> I started..

Bài 1: Tìm x : 
a. ( x + 4 )² - ( x + 1 ) ( x - 1 ) = 16 
b. ( 2x - 1 )² + ( x + 3 )² - 5 ( x + 7 ) ( x - 7 ) = 0 
c. ( x - 2 )³ - ( x - 3 ) ( x² + 3x + 9 ) + 6 ( x + 1 )² = 49

Bài 1: Tìm x : 
a. ( x + 4 )² - ( x + 1 ) ( x - 1 ) = 16 
b. ( 2x - 1 )² + ( x + 3 )² - 5 ( x + 7 ) ( x - 7 ) = 0 
c. ( x - 2 )³ - ( x - 3 ) ( x² + 3x + 9 ) + 6 ( x + 1 )² = 49
 

Ex 2: Viết các câu sau ở thì Quá khứ đơn
1. Nam/do/volunteer work/last year

2. They/donate/many/book/last week

3. Hoa/help/brother/do/homework

4. We/plant/tree/garden

5. The children/clean/streets/yesterday

6. We/encourage/children/to take part/recycle/cans and paper/two weeks ago

Ex 1: Viết các câu sau ở thì hiện tại đơn:

1. Ba/colect/books/street children.

2. Mai/like/help/homeless people

3. “Go green”/be/non-profit organisation

4. Mai/do/volunteer work/so/she/make/difference