He_____(be)back in three hours.
举一反三
- 3. How many hours of exercise in a week is advised by the speake A: At least two hours. B: At least two and a half hours. C: At least three hours. D: At least three and a half hours.
- He __________(come) back in two hours.
- He has already worked for ( ) hours. A: an B: a C: the D: three
- They cleaned their classroom ____ . A: three hours B: on three hours C: three hours ago D: three hours later
- I cleaned my classroom ___________. A: with three hours B: three hours ago C: in three hours D: three hours before