－Look, your sister is playing the pianoover there. －She ______ be my sister. She has gone to America.A. mustn’t B.can’t C.shouldn’t D. may not

I have made ______ clear _______ I have nothing to do with the accident

My parents had ________ me to be aware of theadvantage we had been afforded and the responsibility it brought to us

Let’s sightseeing together.

The government hastaken measures to____ the high pricesof daily goods to keep the market stable.[ ]