纠错 Fred, who usually conducts the choir rehearsals , did not show up last night because he has an accident on his way to the practice .
举一反三
- He had some trouble _____ asleep last night because of his headache.
- What did Tom do last night A: He went to the party. B: He did his homework. C: He helped his mother do the housework.
- 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.
- He is a person who likes to show ____ his knowledge. A: up B: off C: over