One of the firms I applied to has offered me a job but I _____ my options open until I hear from the others.
We should be able to do the job for you quickly, ____you give us all the necessary information.
— Mrs.Smith,please teach me how to draw on the computer today. —Oh,no. ____.You have to get familiar with the keyboard first.
Overpopulation is a terrible threat to the human race.Yet it is probably ____ a threat to the human race than environmental destruction.
Ladies and gentlemen,welcome to my program.____ me this evening is Dr.Gray.
While income worry is ____ rather common problem of the aged,loneliness is another problem that ____aged parents may face.