I stayed up all night（）to find a new solution to the problem.
A: had tried
B: try
C: trying
D: tried
A: had tried
B: try
C: trying
D: tried
举一反三
- I stayed up all night ______ to find a new solution to the problem A: trying B: have tried C: try D: tried
- I stayed up all night,____________ to find a new solution to the problem.
- I stayed up all night trying to find a new _____ to he problem.
- I only called the police when I ______ everything else. A: tried B: was trying C: had tried D: had been trying
- He<br/>__________ to stay up all night, but he fell asleep. () A: automated B: tried C: service D: trying