问题
The scientist __________ the experiment for half a year, but he _______ yet
A:made; didn’t succeed
B:made; hasn’t succeeded
C:was making; didn’t succeed
D:has been making; hasn’t succeeded
B:made; hasn’t succeeded
C:was making; didn’t succeed
D:has been making; hasn’t succeeded
正确答案是：
同类题型
Bob swims ________ than I, but he doesn’t swim_________ my brother.
People in the UK say “holiday”while people in the USA say___________.
She likes _______. She is a good _______.
is expected that it will be fine tomorrow, when we can do some outdoor activities．
Mr. Wu arrived ______Shanghai ______ the afternoon of October 10th.