Many people have come to realize that they should go on ___balanced diet and make___room in their day for exercise.
a. a;/ B. the; a C. the; the D. /; a
Life in the 21st century is much better than_____ used to be.
| A．that | B．it | C．what | D．one |
I’ve _____ all my papers but I still can’t find the contract.
| A．looked into | B．looked up | C．looked through | D．looked after |
It ___ to me that she didn’t know I had moved into the new house.
| A．appeared | B．occurred | C．happened | D．broke |
It was three o’clock in the afternoon _____ a villager telephoned to tell me the surprising discovery of an ancient tomb.
| A．that | B．which | C．where | D．when |
I have been living in the town for nearly thirty years, but seldom _____as lonely as I do now.
| A．have I felt | B．I had felt | C．I have felt | D．had I felt. |