You __ _ cross the road when the traffic lights are red. It’s dangerous. A. needn’t B. may not C. mustn’t
Do you know how many people ______ the big fire last week ?
People make medicine _______tigers’ ____________
The ______ of living areas makes wild animals become fewer than before
----How did he finish the work ?----I hear that he did it __________
I’m ________ to see the baby’s ________ ability in music.