There ______ be a lot of manatees, but now they ______  endangered animals.[    

There ______ be a lot of manatees, but now they ______  endangered animals.[    

题型:同步题难度:来源:
There ______ be a lot of manatees, but now they ______  endangered animals.[     ]
A. used to, become              
B. would, become  
C. used to, have become
D. would, have become
答案
C

举一反三
用所给单词的适当形式填空。  1. We ___(play) football yesterday afternoon.
2. We should keep ___(diary)every day.
3. He invited me ___ (go) to a movie.
4. Do you know the girl ___ (name) Mary?
5. He wants her daughter ___(be) a nurse.
6. Our teachers told us       (finish) homework on time.
题型:同步题难度:| 查看答案
—How was your Children"s Daylast year?
—Great! We _____ some books to the Hope School in that village that day.[     ]
A. are sending      
B. sent  
C. will send    
D. send
题型:同步题难度:| 查看答案
Yesterday our teacher _____a singer to our class. [     ]
A. invite  
B. to invite
C. invited    
D. has invited
题型:同步题难度:| 查看答案
Last night I _____ a book at home.[     ]
A. read  
B. red    
C. readed    
D. reading
题型:同步题难度:| 查看答案
I _____ stay at home yesterday.      [     ]
A. have to  
B. has to  
C. had to    
D. must to
题型:同步题难度:| 查看答案
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