22.I'm very sorry ____ the whole morning. I forgot the appointment. A. to keep you wait B. to have kept you waiting C. to keey you waiting D. to keep you to wait ...

16.This is a nice car, but we cannot ____ it. A. provide B. supply C. afford D. manage E. ...

10.Forty to sixty percent of genetically modified organisms are finding their way to the produce departments. That process involves taking a gene from one plant or animal and putting it in another. "So now, we make these changes in the labo...

4.We substitute fish ____ meat several times a week. A. for B. with C. to D. and ...

23.____ for your help, we'd never have been able to get over the difficulties. A. Had it not B. If it were not C. Had it not been D. If we had not been ...

17.There are no seats ____ for those who are late for the show. A. available B. enough C. supplied D. make ...

11.I see no ____ in leaving my company since I am doing quite well there. A. reason B. excuse C. point D. chance ...

5.Let's address the question of whether speed reading is even a desirable goal. I am an avid fiction reader. Consciously or unconsciously, readers of fiction appreciate the beauty in good writing. Occasionally I will read a passage or sente...

13.I held onto the rail with a feeble grip and began to descend the (treacherous) steps. A. insecure B. tricky C. complicated D. wicked ...

7.I (groped) my way to a door,opened it,and instantly began to cough. A. walked B. felt C. jumped D. tramped ...