The operation room in every hospital has to _______bacteria of any kind so that the patient being operated on doesn’t get infected.
| A．keep free from | B．make it free from | C．to be made free with | D．be kept free from |
Though ____money, his parents managed to send him to university.
| A．lacked | B．lacking of | C．lacking | D．lacked in |
Those who steal books in the library _____ not be allowed to borrow any again in the future.
| A．shall | B．must | C．may | D．can |
___________ that the government can lead them out of the financial crisis, people are optimistic about the future of the country.
| A．Convincing | B．Convinced | C．To convince | D．Having convinced |
We finally managed to make the customers _______ of the quality of the vehicle.
| A．to convince | B．convincing | C．convince | D．convinced |
—Can we meet tomorrow morning?
—Not in the morning, I’m afraid. I ___________.
| A．will be working | B．will work | C．am about to work | D．am going to work |