Find a mistake in the four underlined parts of the sentence and correct it:
According to the weather forecast it is raining tomorrow.
A. According to
B. the
C. it
D. is raining

Choose the best answer for the following sentence:
Ii that the company ______________?
A. you bought your computer                
B. you bought your computer from    
C. which you bought your computer from                
D.  which you bought your computer from it

Choose one sentence that has the same meaning to the root one:
We started to write to each other two years ago.
A. We used to write to each other for two years.
B. We used to write to each other in two years.
C. We've written to each other for two years.
D. We've written to each other since two years.

Choose a word that has different stress pattern:
institute                  operate                    imprison                 activist
A. institute                  
B. operate                    
C. imprison                 
D. activist

Choose the best answer for the following sentence:
____________ a game in which two teams use their hands to hit a large ball backwards and forwards over a high net without allowing the ball to touch the ground.
A. Volleyball                     
B. Basketball                    
C. Football                     
D. Hurdles

Choose one sentence that has the same meaning to the root one:
Tom regrets selling his house.
A. Tom regrets because he didn't sell his house.
B. Tom wants to sell his house.
C. Tom sold his house because he regrets.
D. Tom sold his house and now he feels sorry.

Choose the best answer for the following sentence:
If man were less greedy, more animal species could avoid ___________ 
A. danger   
B. death   
C. threat  
D. extinction

Find a mistake in the four underlined parts of the sentence and correct it:
Her son was considered to have the ability of entering university at the age of sixteen.
A. to have
B. entering
C. at
D. of

Vào thời gian từ tháng XI đến tháng IV năm sau khí hậu có ảnh hưởng như thế nào đến sản xuất cây công nghiệp của Tây Nguyên?
A. Mang đến lượng mưa lớn cho sản xuất.
B. Gây tình trạng thiếu nước nghiêm trọng cho sản xuất.
C. Gây tình trạng xói mòn, rửa trôi tầng đất tơi xốp.
D. Gây ra tình trạng rét đậm, rét hại làm cây trồng bị chết.

Tổng các nghiệm của phương trình sau là
64.9x - 84.12x + 27.16x = 0 
A. 3.
B. 2.
C. 1.
D. -1.