Nét nổi bật của tình hình nước Nga sau Cách mạng tháng Hai năm 1917 là
A. tình hình chính trị, xã hội ổn định.
B. các đế quốc bên ngoài đua nhau chống phá.
C. tình trạng hai chính quyền song song tồn tại.
D. nhân dân bắt tay ngay vào xây dựng chế độ mới.

Choose the best answer for the following sentence:
In case you need any ____________, don't hesitate to call for mine. 
A. assist                        
B. assistance                      
C. assisting                      
D. assistant

Choose the best answer for the following sentence:
If she _____________ him, she would be very happy. 
A. would meet                
B. will meet               
C. is meeting                
D. should meet

Choose the best answer for the following sentence:
__________________ shoes are always of various types. 
A. Woman'                      
B. Woman's                         
C. Women's                        
D. Womens'

Choose the best answer for the following sentence:
If the hole in the ozone layer is bigger, we ____________ more risk of getting skin cancer. 
A. run            
B. ran              
C. would run              
D. will run

Choose the best answer for the following sentence:
____________ are exploring whether organ transplant drugs made by Roche and Novartis increase the risk of an often-fatal neurological disease. 
A. Operators                     
B. Calculators                      
C. Monitors                       
D. Regulators

Choose the best answer for the following sentence:
By the time he arrives everything _____________. 
 
A. had been settled                
B. will be settled
C. will have been settled                
D. has been settled

Choose the best answer for the following sentence:
_________________ is a sport in which you move along the surface of the sea or a lake on a long narrow board with a sail on it.
 
A. Water polo              
B. Diving                   
C. Windsurfing                  
D. Scuba diving

Choose the best answer for the following sentence:
The picture was still highly appreciated because it is a _____________ of the original picture.  
A. faithful reproduction                
B. true copy               
C. fake reproduction
D. fake copy

Choose the best answer for the following sentence:
If I __________ English well, I ____________ the article long ago.
A. knew - would have translated
B. would have known - would have translated
C. knew - would translate
D. had known - would translate