I cleaned my classroom _____.
A: three hours before
B: three hours ago
C: in three hours
A: three hours before
B: three hours ago
C: in three hours
举一反三
- I cleaned my classroom ___________. A: with three hours B: three hours ago C: in three hours D: three hours before
- They cleaned their classroom ____ . A: three hours B: on three hours C: three hours ago D: three hours later
- The fire ____for three hours before the fire fighters arrived.
- I was so involved in reading the book that I (read)______it for three hours before I went to bed.
- in the following three hours