He had some trouble _____ asleep last night because of his headache.
举一反三
- He went to the dance last night but couldn't find a _______ because of his strange clothes.
- The father is an optimist because he has never had a sleepless night in his life.
- Why does Paul look upset A: Because he has to do his annual medical check-up. B: Because he has to change his lifestyle. C: Because he has had some serious health problems.
- Victor had a hard time falling asleep because he is stressed out.
- John didn’t go to the concert last night, _____ he had to finish his report. A: as B: if C: till D: though