There be any difficulty in passing the oral test since you have practiced a lot in the school.
The _____look on Sam’s face suggested that there must have been something _____ on his way to school.
Walking is a good way to keep fit. _______, swimming is helpful for your health.
The president spoke at the business meeting for nearly an hour without _____ his notes.
Seeing the ______ of children playing together on the beach, I felt so happy.
---Why is he absent from school today?---Because he _______ for a spinal injury in hospital.