-- Hi, I’m Peter. Are you new here? I haven’t seen you around? 
 -- Hello, Peter. I’m Bob. I just _____ on Monday.  
 
         
                         A. start         
       
                         B. have started      
       
                         C. started      
       
                         D. had started    
      
 
_____ we don’t stop climate change, many animals and plants in the world will be gone. 
         
                         A. Although      
       
                         B. While      
       
                         C. If       
       
                         D. Until    
      
 
_____ along the old Silk Road is an interesting and rewarding experience. 
         
                         A. Travel       
       
                         B. Traveling         
       
                         C. Having traveled       
       
                         D. Traveled    
      
 
Susan had quit her well-paid job and _____ as a volunteer in the neighborhood when I visited her last year. 
         
                         A. is working          
       
                         B. was working       
       
                         C. has worked       
       
                         D. had worked    
      
 
She and her family bicycle to work, ______ helps them keep fit. 
         
                         A. which       
       
                         B. who      
       
                         C. as      
       
                         D. that    
      
 
During the Mid-Autumn Festival, family members often gather together _____ a meal, admire the moon and enjoy moon cakes. 
         
                         A. share      
       
                         B. to share      
       
                         C. having shared      
       
                         D. shared    
      
 
China’s high-speed railways ____ from 9,000 to 25,000 kilometers in the past few years. 
         
                         A. are growing     
       
                         B. have grown      
       
                         C. will grow     
       
                         D. had grown    
      
 
In any unsafe situation, simply _____ the button and a highly-trained agent will get you the help you need. 
         
                         A. press      
       
                         B. to press      
       
                         C. pressing      
       
                         D. pressed    
      
 
A rescue worker risked his life saving two tourists who _____ in the mountains for two days. 
         
                         A. are trapping               
       
                         B. have been trapped    
       
                         C. were trapping               
       
                         D. had been trapped    
      
 
Ordinary soap, _____ correctly, can deal with bacteria effectively. 
         
                         A. used      
       
                         B. to use      
       
                         C. using      
       
                         D. use    
      
 
Without his support, we wouldn’t be ______ we are now. 
         
                         A. how       
       
                         B. when      
       
                         C. where      
       
                         D. why    
      
 
In today’s information age, the loss of data ______ cause serious problems for a company. 
         
                         A. need      
       
                         B. should         
       
                         C. can      
       
                         D. must    
      
 
They might have found a better hotel if they ______ a few more kilometers. 
         
                         A. drove       
       
                         B. would drive      
       
                         C. were to drive      
       
                         D. had driven    
      
 
-- Good morning, Mr. Lee’s office.  
 -- Good morning. I’d like to make an appointment ______ next Wednesday afternoon.  
 
 
This is _____ my father has taught me—to always face difficulties and hope for the best. 
         
                         A. how       
       
                         B. which      
       
                         C. that      
       
                         D. what