When I came in, I saw Dr. Li ______ a patient.
| A．examine | B．examined | C．to examine | D．examining |
—Who ________ it be that is knocking at the door?
—It________ be Mother, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |
If you cheat in the exam, you could hardly________ it.
| A．throw away | B．run away | C．get away with | D．stay away from |
He once studied in Zhejiang University, ________he went abroad for further study.
| A．after which | B．where | C．in which | D．which |
More attention should be paid __________ English.
| A．to speak | B．for spoken | C．of speaking | D．to speaking |
More than 60 million people in southwestern China ________the drought nowadays as a result of less rainfall, environmental damage and so on
| A．are affecting | B．are being affected by | C．are being effected by | D．are effecting |