问题
选择题
_____ he used to play a lot of computer games, but now he seems to have lost interest in them. [ ]
A. At a time
B. At one time
C. At all times
D. At the same time
答案
答案:B
_____ he used to play a lot of computer games, but now he seems to have lost interest in them. [ ]
A. At a time
B. At one time
C. At all times
D. At the same time
答案:B