2019年mpa考试英语真题——动词的时态395

{01}After Jack had sent some e-mails, he _______ working on his project.
A.had started
B.has started
C.started
D.starts
解析：
本题选C。

{02}Scientists have many theories about how the universe ____ into being.    
A.came                              
B.was coming   
C.had come                          
D.would come
解析：
本题选A。

{03}— You seem to be familiar with this city!
— I _______ English in a high school here for three years. It" s great to be back!
A.have taught  
B.have been teaching  
C.had taught    
D.taught          
解析：
本题选D。