Under the new schedule, teachers of primary and secondary schools must _____each class on time instead of adding extra lessons.
Only when he returned home ______ what had happened.
34. He was fortunate ____ he did not get injured in the car accident.
33. He hasn’t decided _____ he will go abroad next year.
The old man turned his business over to his younger son, ________made his elder son discouraged.
Stand _____ you are, and I will come and help you.