– Is that woman your head teacher? -- No, it be her. Our head teacher is in her office. A. mustn’t B. can’t C. needn’t
While the boy ______ down the street, the UFO _____ .
We didn't know the good news _________he told us.
I didn’t know ________.
One of ________ doctors in America will visit our hospital and give us a report.
I think you should _______ some money _______ your friends.