1. On ________ one hand, the development of modern industry has improved our living conditions, but on the other hand, it does ______ harm to our environment.
A. the; the B. / ; the C. / ; a D. the; /
2._________, failure is more meaningful than success to a person’s future.
A.In the way B. By way of C. Under way D. In a way
3. They plan to go abroad for a holiday with the task _____ ahead of time.
A. to finish B. finished C. finishing D. having finished