Road conditions in this area had gone from bad to worse. Accidents had taken place ______ before the strict measures were taken.
A: by the way
B: in a row
C: in the way
D: in a line
A: by the way
B: in a row
C: in the way
D: in a line
举一反三
- The water will be further polluted unless some measures ________. A: will be taken B: are taken C: were taken D: had been taken
- The things talked about in this report ______ over a year ago. A: had taken place B: took place C: have taken place D: were taken place
- Great changes ______ in our home country over years ago. A: had taken place B: took place C: have taken place D: were taken place
- Great changes______ in the past ten years in China. A: took place B: have taken place C: were taking place D: had taken place
- I think it’s high time we (take)_____ strict measures to stop pollution. A: took B: would take C: had taken D: have taken